Viewing Watermark

Majority of the recent Malaysia stamps are printed on watermarked paper. The watermark figure normally used on these stamps is of word "SPM". I wrote about SPM watermark some time ago, and you may click here to read about the story. Skilled collectors are able to view the SPM watermark easily by positioning a stamp or stamp sheet to a certain angle. Many collectors may use a watermark detector to view the watermark. However, the watermark detector could be expensive. Alternatively, one may view watermark by using money detector (uv light). SPM watermark can be easily viewed under uv light even the watermark is weak. If one showers uv light on the gum side of a stamp, the watermark will just stand up strikingly (see below photo).


the image of SPM view on the gum side of a stamp sheet under uv light (money detector)