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Fusion Amplitude 15 delta Convergence in Upper pictures to 20 delta Convergence in Lower Picture. Keystone View Company. Made in U.S.A. b02. Ec 28. Keystone Stereoscopic Service. Copyright Keystone View Co., undated.

 Item — Box: 6, File: 99, Item: 3

Scope and Contents

From the Series:

Many of the cards in this series are meant to be educational in nature. There are also some sets that are used for professional reasons. For example, the optometric community used stereographs to gauge vision and diagnose their patients.

Dates

  • Copyright: undated.

Creator

Extent

From the Collection: 18.75 linear feet

Language of Materials

From the Collection: English

From the Collection: French

From the Collection: German

From the Collection: Spanish; Castilian

General Note

Additional information on back of card.

Repository Details

Part of the Truman State University, Pickler Memorial Library, Special Collections Manuscripts Repository

Contact:

660-785-4537