The 1925, 1927 and 1930 Frederick Post Catalogs all had this identical page.
Rules described as "adjustable" use the DRGM 192052 friction adjusting mechanism
| No specimens known. |
The 1925, 1927 and 1930 Frederick Post Catalogs all had this identical page. |
| This rule was made by Koch, Huxhold & Hannemann.
Rules described as "adjustable" use the DRGM 192052 friction adjusting mechanism |