Vintage Frederick Post Co. 1447 Hemmi slide rule Mfg in Japan

vintage Frederick Post Co. 1447 Hemmi slide rule, likely manufactured in Japan by Sun Hemmi.
Description:
This particular model is a 10-inch, one-sided bamboo rule coated with white celluloid on the front. It features A, D, and K scales on the base, and B, CI, and C scales on the slide, with additional S, L, and T scales on the reverse side of the slide.
Manufacturer:
The Frederick Post Company of Chicago imported these slide rules from Hemmi, a Japanese firm, from approximately 1932 to the 1970s.
Historical Context:
The 1447 model was sold by Post from about 1949 to 1971.
Collectibility:
These vintage slide rules, especially in good condition with their original cases, are considered collectible items by enthusiasts of science, medicine, and engineering history.
Bin 105