Frederick Post #1452W Slide Rule Universal Math Ruler

The Frederick Post #1452W is a vintage universal slide rule made in Japan by Hemmi. It is sometimes made of bamboo and coated with white celluloid on all sides except the ends. The rule is held together with metal posts, and one side of the glass indicator has a metal frame with plastic sides. The Hemmi name is marked on one side, and the Post logo is marked on the other. No chips or stains. Measures 10” long.