Watermark Detectors

serving collectors since 1953
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Watermark Detectors

You don't need to have any special skills or training to see the watermarks with the Signoscope.  See watermarks without harsh chemicals or odors.  Take your time peering through the viewfinder and even take photos ... the watermark is visible for as long as you like.

Signoscope, The Original Optic-Electric Watermark Detectors

A real success story and a great gift idea! Make your dreams come true!

Signoscope T1For a long time now you have been dreaming of being able to check all of your stamps for watermarks in a simple way, quickly, precisely, and without endangering your stamps. This is no longer a dream. The SAFE-Signoscope is reality! The units are worth far more than what they cost. One single newly discovered watermark or a newly identified watermark variation can make up, several times over, for the money spent to buy a SAFE Signoscope. Watermark or no watermark, falling or rising. Well, let's get out the watermark fluid... No, not any more! The "steamboat age" is past. From now on you will check for watermarks simply and precisely and without taking any chances of damaging your expensive stamps.

For those collectors of German stamps - we also have some nice images of German Watermarks from 1849-1951 you may enjoy.

Watermark Detectors

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9 Item(s)

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9 Item(s)

Discover your treasures with the Signoscope, The Optic-Electric Watermark Detectors

You suddenly discover treasures you did not know you had! The difference could be in the thousands of dollars. It is so simple, and it works so quickly. You simply place your stamp into your Signoscope. If there is a watermark, it will show, even on yellow or orange stamps. Take your time studying its fascinating contrasts and its many details. You will discover watermarks which you would have been unable to detect with "yesterday's" methods. Learn to distinguish paper irregularities, repairs, grills, hinge marks, added margins, etc. See below. Are there any hidden treasures in your collection?

Signoscope T1 Watermark DetectorSignoscope T1 - The Proven Professional Unit

  • Uses a position lever (handle) for fast removing and inserting stamp tray and to adjust pressure
  • On-off light switch · Contrast adjuster · 7.5 Volt light output
  • Especially recommended for difficult stamps (US stamps, British Colonies, etc.)
  • Maintenance free
  • For stamps up to size 2" x 2"
  • Operates on 5 "AA" (1.5 Volt) batteries, or AC Adapter with 7.5 Volt DC output
  • Weight: 1lb. 15 oz. - Size: 8" x 4-1/4" x 5-3/4"H

No. 9886 - Signoscope T1 (with 110v adapter)

Signoscope T2 Watermark DetectorSignoscope T2 - The Portable Unit

  • Uses a wing nut on bottom of unit for removing and inserting stamp tray and to adjust pressure
  • Push button switch (to be held down while viewing stamp) · No contrast adjuster · 3 V light output
  • Maintenance free
  • For stamps up to size 2" x 2"
  • Operates on 2 "AA" (1.5 Volt) batteries, or an optional AC Adapter with 3 Volt DC output
  • Weight: 14 oz. - Size: 5-1/4" x 2-3/4" x 3-1/2"H

No. 9875 - Signoscope T2 (with or without batteries or adapter)

Here are just a few samples of what you can see with the Signoscope (images not enhanced) - repaired tear on right.

Repaired tair