How to Measure Thickness of a Looking Glass, No. 13, card verso, bakery insert card from the How To Do It series (D45), issued by the Welle-Boettler Bakery Company
Object type: Print
Department: Drawings and Prints
Artist: Welle-Boettler Bakery Company
Artist role: Publisher
Artist nationality: American
Date: early 20th century
Medium: Commercial color lithograph
Dimensions: Sheet: 2 1/2 × 1 1/2 in. (6.4 × 3.8 cm)
Classification: Prints|Ephemera
Credit line: The Jefferson R. Burdick Collection, Gift of Jefferson R. Burdick
Accession year: 1963