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Image ID: 273
Title:Mixing ingredients for glassblowing in the Bryn Athyn glass factory
Source:Raymond and Mildred Pitcairn Archives, Bryn Athyn, PA
Medium:35mm slide
Description: The glass melted and blown at the Bryn Athyn glass factory was a formula known as “soda lime glass” because the primary ingredients were sand, soda ash, and lime. Color was introduced by adding different metallic oxides.