Perforation guage for postage stamps

Details Perforation guage for postage stamps Perforation guage for postage stamps

G - Physics

01

B

33/156

G01B 5/16 (2006.01)

Patent

CA 1290935

Abridqement A measuring plate (10) supports successive rows of perforation fingers (24i-k) on its upper side, the spacing and diameter of which respectively correspond to the perforations of a postage stamp. By laying the postage stamp on a row of perforation fingers (22i), the conformity of the postage stamp perforations and measuring perforations can be checked in a tactile manner. The measuring plate(10)is connected by way of a hinge (30 to 34) to a trough-like lid member (12), which can be used for checking water-marks. The measuring plate (10) and lid member (12) together form a flat carrying case for postage stamps. (Figure 1).

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