Title
Slide ruleCatalog Number
102631423Type
Physical objectDate
Circa 1940Manufacturer
DietzgenPlace Manufactured
U.S.Identifying Numbers
Model number | 1765W Handy | |
Other number | P223 | Donor's ID number for rule |
Model number | 1765W Handy | |
Other number | P223 | Donor's ID number for rule |