Title
Slide ruleCatalog Number
102631555Type
Physical objectDescription
The object consists of a slide rule and leather case. Printed on the back of the slide rule is "AUTOMATIC TELEPHONE & ELECTRIC CO LTD." Printed on the case is "ATM".Manufacturer
Blundell Rules Ltd.Place Manufactured
U.K.Identifying Numbers
Model number | P19 | |
Other number | P022 | Donor's ID number for rule |