Leon Warnerke
Polish Engineer and Inventor in Photography.
1883 Warnerke's Pocket Actinometer, full report and Illustrations on p 299 of The Engineer 1883/10/19.
1892 Presented at the Camera Club's conference on chemigraphic etching[1]
1893 of Champion Hill, London
See Also
Sources of Information
- ↑ The Engineer 1892/03/25
- [1] Wikipedia