Four-inch Vest Pocket Mannheim With Flat Lens
Frederick Post model 1447  [1932]
Hemmi Model 30
This rule became model 1440 in the 1936 Catalog.

Top Edge: 0-4 in (slant) Bottom Edge: 0-10 cm Vertical) Back of Slide: [S, L, T] Back: THE FREDERICK POST COMPANY  NO. 1447 @"SUN"@ HEMMI MADE IN JAPAN	Page 13 from April 1932 price list.
	Same as Hemmi model 30 Note that Hemmi vest pocket rules did not have a CI scale until after WWII.