Image: Weld-Blundell Prism with transcription by Stephen Herbert Langdon (1876-1937)
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Description: Weld-Blundell Prism with transcription by Stephen Herbert Langdon (1876-1937)
Title: Weld-Blundell Prism with transcription by Stephen Herbert Langdon (1876-1937)
Credit: This file has been extracted from another file
Author: Photograph: unknown > Transcription: Stephen Herbert Langdon (1876-1937)
Usage Terms: Public domain
License: Public domain
Attribution Required?: No
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