Rosa, Countess of Königsdorff, GB189512889A
Improvements in Holders for Menu Cards, Ball Programmes, and the Like.
Image credit: Rosa, Countess of Königsdorff (1895)
On August 31, 1895, Rosa, Countess of Königsdorff, of Cassel, Prussia, patented a novel card holder. Her design featured an ornamental front plate with a spring clamp at the back to secure the card, and a pin for fastening the holder to the wearer’s clothing.
Date of Application: 3 July 1895
Date of Issuance: 31 August 1895
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Francesca Chiaradia
PhD Candidate in Economics
My research interests include innovation, law, and information economics.