Component Part View

The Royal Philatelic Society London

3725

RPSL_MUS

12 Mar 2024 11:05:40

Museum Objects

SET

The Museum of Philatelic History at the Royal Philatelic Society London

Watermark detector. Electric watermark detector in box with lens and plastic colour filters. I. Detector brown wood box with a slanted top side. Top: rotating knob in centre, viewfinder (drilled hole through the wood with plastic underneath) diagonal top right of the knob, scale described on white plastic to the left of the knob. Bare base. Front side: diamond-shaped stamped logo reading 'THE "Philatector"' centrally, 'H. & A. WALLACE LONDON' above, and 'PATENT APPLIED FOR' below. Left side has

H. & A. Wallace (Philatelists) Ltd (manufacturer)

1900 to 1999

Object Part

Watermark detector. Electric watermark detector in box with lens and plastic colour filters. Detector: brown wood box with a slanted top side. Top: rotating knob in centre, viewfinder (drilled hole through the wood with plastic underneath) diagonal top right of the knob, scale described on white plastic to the left of the knob. Bare base. Front side: diamond-shaped stamped logo reading 'THE "Philatector"' centrally, 'H. & A. WALLACE LONDON' above, and 'PATENT APPLIED FOR' below. Left side has a

United Kingdom

ENG