c.late 19th century, signed to the label 'J. D. Möller Diatomaceen, Typen-Platte Balsam Styrax',with 100 diatoms arranged in a square, in a faux leather covered case with blue velvet lining and cream silk to the lid, retail stamp for Watson & Son, Optician 313 High Holborn, London
Condition: diatoms all in correct place
Sold for £325
Result plus buyers premium
c.late 19th century, signed to the label 'J. D. Möller Diatomaceen, Typen-Platte Balsam Styrax',with 100 diatoms arranged in a square, in a faux leather covered case with blue velvet lining and cream silk to the lid, retail stamp for Watson & Son, Optician 313 High Holborn, London
Condition: diatoms all in correct place
Auction: Fine Instruments of Science & Medicine, 29th Nov, 2023