
Potasse D'Alsace Sign
Twin Acts of Defiance
In 1904, two acts of defiance were quietly reshaping Alsace, acts so subtle that the German authorities occupying the region never noticed until it was too late to stop them.
Sixty miles apart, a woman and a man were refusing to accept the world as others saw it. In Nonnenbruch forest, 46-year-old Amélie Zurcher knelt in soil that everyone called worthless, her calloused fingers reading stories written in clay and stone, geological secrets that would unlock industrial transformation¹. In Colmar, Jean-Jacques Waltz, "Hansi" to those who treasured his art, was drawing satirical storks with ink-stained fingertips, that appeared harmless to German censors but carried the DNA of cultural resistance².
Neither could have imagined that their separate rebellions would converge decades later into a single symbol that would outlast every empire that tried to erase Alsatian identity. But then, Alsace itself seemed to orchestrate such meetings between those brave enough to defy the verdict of worthless ground and cultural erasure.
The morning sun that catches these porcelain enamel signs in collectors' hands today? It illuminates enamel monuments to the most unlikely partnership in industrial history: the woman who refused to accept barren land and the artist who refused to let his culture disappear.
The Woman Who Read Dirt
The first act of defiance began in 1904, when 46-year-old Amélie Zurcher refused to accept the verdict that her Nonnenbruch forest was worthless. While German authorities dismissed both her gender and her geological theories, Amélie pressed her hands into Alsatian soil that felt different, not just to touch, but to some deeper intuition that had guided her since childhood.
Her education at the Dominican convent school in Nancy had taught her to read more than scripture³. Between 1870 and 1877, as Prussian boots marched across her homeland, she studied geology with the fervor other girls reserved for embroidery. The nuns, themselves refugees from territories annexed by force, recognized in young Amélie a particular sensitivity, the ability to perceive what lay hidden beneath surfaces, whether in rock formations or in the human heart.
The Alsatian soil itself seemed to choose its interpreters. For centuries, this borderland had absorbed the footsteps of Romans, Franks, Germans, and French, each leaving traces in its geological memory. Now, as Amélie managed her 800-hectare Lützelhof farm under German rule, that same earth called to her with urgencies others couldn't hear. Dig here. Look deeper. What seems barren holds riches.
Her neighbors called her mad. German bankers scoffed at the notion of a single French woman financing industrial ventures in occupied territory. But when her fingers touched the pink-orange crystals at 627 meters depth⁴ (2057 ft), the rough potash crumbling like compressed sunlight between her palms, Amélie had unlocked more than potash; she had discovered proof that the land itself was French, holding wealth that no political boundary could claim or German administration could control.
The earth had been testing her all along, preparing her for this moment when feminine intuition would reshape the industrial landscape and prove that some treasures belong to those brave enough to defy the surface verdict of worthlessness.
The Artist Who Drew Resistance
Sixty miles north in Colmar, the second act of defiance was taking shape in the hands of Jean-Jacques Waltz, who had learned that the most effective rebellion often wore the mask of innocent folklore.
Born in 1873 into a world where speaking French in school meant punishment, where Prussian authorities sought to scrub every trace of Gallic identity from Alsatian souls⁵, young Jean-Jacques discovered early that his hands could capture what his heart refused to surrender. In the Waltz household, where his father served as both butcher and secret keeper of French memory as librarian of the Unterlinden Museum⁶, the boy absorbed more than language; he inherited an almost mystical connection to the symbols that lived in Alsatian hearts.
The same Alsatian earth that whispered geological secrets to Amélie seemed to guide his artistic vision. At the École des Beaux-Arts de Lyon from 1892 to 1895, surrounded by French culture denied to him at home⁷, he learned that art could be a weapon as much as beauty. His dip pen, weighted with more than Indian ink, would become his instrument of cultural preservation, catching the lamplight streaming through his Colmar studio window, drawing power from the same underground currents that would soon yield industrial fortune.
When he returned to Alsace as "Hansi," those hands began sketching something fiercer than mere illustrations: storks that watched with knowing eyes over villages where hidden French flags bloomed in flower boxes, where children in traditional dress played games their German overseers couldn't quite decode⁸. Each stroke of his pen was an act of cultural archaeology, preserving in watercolor what Prussian law sought to bury.
His satirical drawings made German authorities see harmless regional charm, while Alsatian hearts recognized coded resistance. Books like "Professor Knatschke" and "L'Histoire d'Alsace racontée aux petits enfants" sold over 65,000 copies⁹, their humor carrying the weight of a people's refusal to disappear.
Like Amélie reading stories in stone, Hansi was translating the underground language of Alsatian identity into images that could travel far beyond imperial borders.
By 1914, his "innocent" folklore had become so dangerous that German authorities imprisoned him in Leipzig. His dramatic Bastille Day escape transformed him from regional artist to international symbol of cultural defiance, proof that some truths cannot be erased, only driven deeper until they find new ways to surface.¹⁰
When Defiance Converged
By the 1920s, both acts of rebellion had reshaped the Alsatian landscape in ways their German occupiers never anticipated. Amélie's geological intuition had unlocked industrial transformation; the potash basin now employed thousands of Polish miners¹¹, turning former farmland into the mineral heart of French agriculture. Hansi's satirical drawings had made him a symbol of cultural resistance across France, his "innocent" storks carrying the DNA of Alsatian identity that no political boundary could erase.
When the newly French-controlled Mines Domaniales de Potasse d'Alsace needed a visual identity in the mid-1920s, the convergence felt orchestrated by the land itself¹². Here was wealth discovered by French intuition, extracted from Alsatian soil, now requiring symbols that could proclaim both industrial might and cultural continuity. Who better than Hansi to transform his folkloric bird into an industrial emblem?
The commission represented something unprecedented: the woman who had read treasure maps written in geological time, and the man who had drawn resistance disguised as regional charm, finally united in purpose.
Amélie's underground gold needed Hansi's airborne symbol. His cultural preservation needed her industrial platform. Together, they would create something more powerful than either could achieve alone.
Between 1925 and 1930, as MDPA expanded from its 1924 French purchase into a massive operation employing 11,000 workers¹³, Hansi's stork design took flight. The same earth that had whispered secrets to Amélie's hands was being transformed into infrastructure that would feed European agriculture for decades, all under the watchful eyes of Hansi's painted guardian.
Feminine intuition that had unlocked the earth's secrets, masculine artistry that had preserved the region's soul, and Alsatian soil that had chosen both of them as its interpreters - the convergence was perfect. The stork that emerged wasn't just industrial advertising - it was proof that some acts of defiance, when they find each other, create symbols that transcend the empires that try to contain them.
What German authorities had dismissed as worthless ground and harmless folklore had become a declaration of French industrial might wearing the face of indestructible Alsatian identity.
Monuments to Twin Defiance
And so we arrive at those porcelain enamel signs that today command premium prices at auction, not as mere industrial artifacts, but as monuments to the most unlikely partnership in the history of resistance.
In the workshops of L'Emaillerie Alsacienne, founded in 1923 in Strasbourg-Hoenheim¹⁴, Hansi's design took physical form through cutting-edge screen printing techniques. Multiple layers of ground glass, shimmering like crushed diamonds before the furnace doors swung open, fused at temperatures exceeding 830°C (1525°F)onto steel substrates¹⁵, created surfaces that would outlast every empire that had traded Alsace like currency. But this was more than industrial manufacturing; in those vitreous depths, two kinds of defiance fused into something unprecedented.
The stork on its field of Alsatian blue carried deeper symbolism than even its creators fully realized. In regional folklore, these birds delivered babies from the Kinderbrunnen. the children's well beneath Strasbourg Cathedral, where an elf with a golden net caught souls for waiting parents¹⁶. Like the legend itself, this industrial symbol connected Amélie's underground mystery with Hansi's aerial hope, suggesting that some truths transcend the rise and fall of nations.
The signs themselves became witnesses to history's vindication of their creators' vision. Produced continuously from the late 1920s through the 1950s¹⁷, they survived Nazi re-occupation, liberation, and reconstruction. Those manufactured during the immediate post-war period represent particularly fascinating artifacts, bearing updated company markings while still using pre-war steel substrates, embodying both survival and renewal.
Today, original MDPA signs featuring Hansi's stork have become highly sought-after historical artifacts, each one preserving the moment when feminine geological intuition and masculine artistic resistance proved stronger than imperial dismissal. Their authentication requires understanding the evolution that mirrors the region's complex history, the magnet test revealing authentic heavy steel construction.¹⁸, the raised enamel textures still readable to sensitive fingertips¹⁹.
The most reliable dating involves examining manufacturing details that tell the story of survival itself. Authentic signs from the 1930s through early 1950s used heavy ferrous steel substrates that strongly attract magnets. The transitional pieces from 1945-1950 carry multiple layers of enamel, creating raised textures where different colors meet, the same kind of tactile sensitivity that once guided Amélie's hands through geological discovery²⁰.
These signs represent far more than collectibles. They embody the triumph of two extraordinary visionaries who refused to accept the world as others saw it: a woman who found wealth hidden beneath barren ground, and a man who preserved cultural memory in images that outlasted empires.
In their vitreous depths, they hold the story of Alsace itself, a region that found ways to maintain identity while adapting to change, that transformed oppression into cultural richness, that proved some acts of defiance, when they converge, create symbols more durable than the governments that try to contain them.
The morning sun still catches enamel in collectors' hands, and in that light, Hansi's painted stork continues its eternal watch, guardian of the moment when underground treasure met airborne art, when twin acts of defiance proved that the Alsatian landscape itself chooses those brave enough to read its ancient wisdom and preserve its indestructible soul.
SOURCES:
¹ Amélie Zurcher - Wikipedia
² Jean-Jacques Waltz - Wikipedia
³ Alsace Histoire, "ZURCHER Amélie Louise Marie"
⁴ L'histoire des mines de potasse d'Alsace
⁵ Jean-Jacques Waltz - Wikipedia
⁶ Colmar Tourist Office - Jean-Jacques Waltz aka Hansi
⁷ Military Wiki - Jean-Jacques Waltz
⁸ Hansi Paintings & Artwork for Sale
⁹ L'Histoire d'Alsace racontée aux petits enfants par l'Oncle Hansi - Babelio
¹ ⁰ Colmar Tourist Office - Jean-Jacques Waltz aka Hansi
¹¹ The potash route | Mulhouse Tourist Office
¹² Musée Hansi - Details
¹³ L'histoire des mines de potasse d'Alsace
¹⁴ The enameled advertising plates of the Emaillerie Alsacienne... A to Z
¹⁵ MEYER (Pierre), Les plaques émaillées publicitaires de l'Émaillerie alsacienne de A à Z
¹⁶ The stork that delivers babies in Alsace folklore
¹⁷ Plaque publicitaire ovale - Musées Grand-Est
¹⁸ SPOTTING A FAKE SIGN…CLUES FROM THE EXPERT
¹⁹ How To Tell If a Porcelain Sign is Authentic
²⁰ The Disappearing Art of Porcelain Signs - Collectors Weekly
Pause here. Let this settle.
Every sign carries what it witnessed -
and survived because of it.
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