Addo, electrically driven, adding, subtracting, and printing machine
This Addo machine is a type of small adding-listing machine available in the 1930s and 1940s. The main applications for these machines were payroll calculations and a simplified form of sales ledger book-keeping. Several larger machines were later developed by several companies specifically for book-keeping and billing applications.
Details
- Category:
- Mathematics
- Object Number:
- 1971-8
- Materials:
- brass (copper, zinc alloy), metal (unknown), plastic (unidentified), paint, steel (metal) and electrical components
- Measurements:
-
overall: 250 mm x 370 mm x 455 mm, 15.904 kg
- credit:
- Megator Pumps and Compressors Limited
