Post by I.L.S. on Aug 15, 2013 10:53:07 GMT
Watermark chart
wmk 190
(Single line)
example:
wmk 191 (Double line)
example:
S.G. "Detectamark" watermark detector (I have one of these but they would seem to work much better on World Wide than classic period USA.)
The device:
Choose stamp (#319) to be inspected:
Place stamp up-side-down on the black steel tray part of the cartridge:
Lower the thick Lucite/plexi cover on the cartridge:
Place cartridge inside device:
Tighten up the thumb-screw as tight as you can for best image possible of watermark (Some paper is really thick and hard to "see through"):
Press button to illuminate the stamp and reveal the watermark:
wmk 190
(Single line)
example:
wmk 191 (Double line)
example:
S.G. "Detectamark" watermark detector (I have one of these but they would seem to work much better on World Wide than classic period USA.)
The device:
Choose stamp (#319) to be inspected:
Place stamp up-side-down on the black steel tray part of the cartridge:
Lower the thick Lucite/plexi cover on the cartridge:
Place cartridge inside device:
Tighten up the thumb-screw as tight as you can for best image possible of watermark (Some paper is really thick and hard to "see through"):
Press button to illuminate the stamp and reveal the watermark:
