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Photography in Philately

A Krzysztof K. Słowiński Collection

Zaleski - Mora 1988.jpg WZF 1969ThumbnailsZaleski 2014WZF 1969ThumbnailsZaleski 2014WZF 1969ThumbnailsZaleski 2014WZF 1969ThumbnailsZaleski 2014

= Example of scientific publication by Cz. MORA and A. ZALESKI =

The paper desribes some phenomena occuring in direct-positive photographic emulsions containing silver halide crystals.

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