Title: Zippered Block pattern (OMN Duncan and Sons No. 90, AKA Open Cryptic)
Medium: clear glass, rubly flash
Dimensions: 4 x 2 1/4 x 2 1/4 in. (10.2 x 5.7 x 5.7 cm)
Classification: Decorative Arts, Glass
Credit Line: Gift of the estate of M. Burton Drexler. In the permanent collection, Brunnier Art Museum, University Museums, Iowa State University, Ames, Iowa.
Object Number: UM2013.426