This Photograph appears
in the following Albums:
| Image ID: | 274 |
| Title: | Mixing ingredients for glassblowing in the Bryn Athyn glass factory |
| Source: | Raymond and Mildred Pitcairn Archives, Bryn Athyn, PA |
| Date: | Unknown |
| 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. |