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Butter-Nut Bread “Sioux Indian” – Card No. 7 from the 49-card Invisible Paint Picture series, issued 1921–1922.
• Title: Sioux Indian
• Card number: No. 7
• Set size: 49 cards (explicitly stated on back)
• Manufacturer: The Campbell-Ewald Baking Co.
• Printer: Invisible Color Print Corp., New York
• Patent date: July 12, 1921
• Distribution: Inserted in loaves of Butter-Nut Bread
This card has been lightly painted, but is an excellent condition. Possible light color bleed at bottom and corners are slightly bumped.
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What Makes This Series Special
This is not just a picture insert — it’s an “Invisible Ink / Paint-to-Reveal” card.
How it worked:
• The front originally showed a faint outline only
• Children painted it with water
• Hidden inks activated, revealing full color
Historical Text on the Back
The card includes period ethnographic text referencing:
• The Sioux (Dakota) people
• Population figures attributed to the Handbook of American Indians
• Early-20th-century language typical of advertising and education at the time
From a collecting standpoint, this places it firmly in:
• Advertising ephemera
• Native American themed food premiums
• Early interactive children’s collectibles
