Comptograph by Sumlock Comptometer Ltd.
- maker:
- Walther Büromaschinen GmbH
Comptograph by Sumlock Comptometer Ltd., serial no. 130574, made by Walther, in West Germany, 1955-1965
Comptograph by Sumlock Comptometer Ltd., serial no. 130574, made by Walther, in West Germany, 1955-1965