With the SHERLOCK watermark detector, reveal every detail of your stamps, whether it is watermarks or paper irregularities, quality defects, or repairs.

Easy to use: Insert stamp, turn on the light, and you can already see the secrets of your stamps in every detail – no chemicals needed, therefore no danger for your stamps.

The special feature of this watermark detector is the different light colors (white, red, green, and blue), which can be chosen to light up the stamp. The brightness of the powerful LEDs can be infinitely adjusted. Reveal hard-to-find watermarks with this wide spectrum of color and brightness.

The SHERLOCK watermark detector: A compact unit with the technical sophistication of a professional device. Suitable for stamps up to 2 x 1 ¾" (50 x 45 mm) in size. Battery powered (4 x 1.5 V AA batteries, not included). Reinforced plastic housing. Made in England.