“Photo-Mechanical” Plates
ARE SPECIALLY MADE FOR
- PHOTO-LITHOGRAPHERS,
- PHOTO-ETCHERS & COPYING.
Collodions, Varnishes, Chemicals, and other requisites for Photo-Engravers, etc.
MAWSON & SWAN,
33, SOHO SQUARE, LONDON, W.,
AND
15, Mosley Street, NEWCASTLE-ON-TYNE.