1969 Frederick Post Co 1450 Versatrig* Slide Rule with Original Case and manual

As was the case with many Post rules, this was made for them by Hemmi in Japan and the rule has a double length root scale, labeled R1 and R2. The Versatrig is a simplified version of the Versalog lacking the log-log scales and has both an A scale and a D1 scale. This rule was one of the most comprehensive sold by Post, the rear cursor glass is cracked though totally usable.  See the pictures.  The case is original and in excellent condition (purchased August 1969)