Old Pocket Slide Rule with Magnifier & Pouch - Sun Hemmi, Post #1441

Before computers there were slide rules. This was sold by the Frederick Post Co. and is their No. 1441. It was made in Occupied Japan, apparently by the Sun Hemmi company and I believe it is considered their number 32R which was made between 1949 and 1950.

I believe the definition is a 4" rule A [B CI C] D - [S L T] - 100mm x 11/16 x 7/32 but please look closely as I am going by research and do not personally use a slide rule.

It appears to be made of bamboo with a celluloid like plastic covering. It has the slide magnifier that is marked Made in Occupied Japan on one side and Sun Hemmi on the other. It comes with its original leather pouch that is faintly stamped inside with Made in Occupied Japan and on the outside it is stamped Post 1441.

Over all the rule measures 4 ¾" by 7/8" and it appears to be in good condition with minor wear. The magnifier has some scratch wear and a chip along the side. The pouch measures just over 5" by 1 5/16" and is in good, used condition.

The pictures are not shown at actual size. Please refer to the description for actual measurements.

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Item ID: 18335

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