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- "Spectro-Chrome Manual for Dinshah Spectro-Chrome," circa 1945 -
- 1945
- Collections - Artifact
"Spectro-Chrome Manual for Dinshah Spectro-Chrome," circa 1945
- Dinshah Spectro-Chrome Institute Spectro-Chrome, circa 1945 -
- circa 1945
- Collections - Artifact
Dinshah Spectro-Chrome Institute Spectro-Chrome, circa 1945