Prinz Watermark Fluid
Instantly detects
watermarks and is safe for all stamps. Place stamp face down
in watermark tray. Pour or drop sufficient amount of Prinz Watermark
Fluid to cover back of stamp. If there is a watermark, one will
appear. (250ml / 8oz)
Clarity Watermark Fluid
ClarityTM was developed at the request
of the American Philatelic Society (APS) for an improved watermarking
fluid that is safe to use with philatelic materials. ClarityTM combines
superb optical resolution with a moderate evaporation rate in a solvent-free,
non-hazardous formulation.
