Post 1444 from 1925-30. Photo courtesy Fred Astren who owns the only
specimen I am aware of. 
Rules described as "adjustable" use the DRGM 192052 friction adjusting mechanism.
|
Post 1444 from 1925-30. Photo courtesy Fred Astren who owns the only
specimen I am aware of. |
This identical page appears in the 1925, 1927 and 1930 Frederick
Post catalogs.
|
| These rules were made by Koch, Huxhold & Hannemann.
Rules described as "adjustable" use the DRGM 192052 friction adjusting mechanism. |