Concise Ruler Circular Slide Rule ORANGE and ROCKLAND Made in Japan

Description

This is a new Key Line "Concise" circular slide rule.
Included is a ORANGE and ROCKLAND  gold label on the black plastic case.
The circular slide rule also has "ORANGE and ROCKLAND  on the white face.
Also a brief instruction paper is included.
Approx. 3 1/8" in diameter
USPS First Class SHIPPING
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