Watermark Detectors
Morley Bright
The Inst-a-Tector and Roll-a-Tector units are pocket sized and use a sealed ink sachet
to reveal the watermark. Can be used for stamps on covers, postcards and on piece.
Prinz Watermark Fluid
The traditional method of finding a watermark.
Involving the use of watermark fluid, a dropper bottle and a watermark tray.
Safe Signoscope
The T1 Professional and T2 Portable units are optical watermark detectors.
Manufactured in durable plastic. Suitable for loose stamps only.
SG Detectamark
A high tech optical watermark detector very similar to the Safe Signoscope T2
but manufactured in metal. Suitable for loose stamps only.