The first negatives :

an account of the discovery and early use of the negative-positive photographic process /
by D.B. Thomas.
Bibliographic Details
Main Creator: Thomas, David Bowen.
Format: Book
Language:English
Published / Created: London : H.M.S.O., 1964.
Series:A Science Museum monograph
Subjects:
Notes:Includes bibliographical references.

Physical description: 39 p. : ill. ; 24 cm.

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