Vintage Arithma Addiator w/ Case & Instructions & Stylus. This Arithma has an extra set of square windows (below the subtraction scales) which show the complement of the number in the circular result windows. The square windows are used in the case of subtraction below zero to show the true value of a negative balance. Addiator Slide Rule, Faber-Castell 67/87 Rb "Rietz" 6 columns, decimal Vintage Arithma Addiator Precision adding machine. German made adding machine complete with instructions and vinyl case in like new condition. 6 1/4 x 1 5/8. With pen to slide the columns for adding or subtracting. Any shipping over payment of $2.00 or more will be refunded. Something went wrong. View cart for details. Jan 23, 2021 - We have an Addiator Arithma Vintage adding machine. It is in the vinyl case with instructions on how to use it. The metal addiator measures about 6 3/8 in L x about 1 5/8 in W. There is a metal pull out bar on the top and a stylus on the side. It is in very nice condition with the instructions We have an Addiator Arithma Vintage adding machine. It is in the vinyl case with instructions on how to use it. The metal addiator measures about 6 3/8 in L x about 1 5/8 in W. There is a metal pull out bar on the top and a stylus on the side. It is in very nice condition with the instructions Arithma Addiator - Golden gem Adding Machine. View Item in Catalog Lot #23 . Sold for: $4.25 to S****7 "Tax, Shipping & Handling and Internet Premium not included. See Auction Information for full details." Payment Type: Payment Type: Please Add / Select Card ARITHMA ADDIATOR. WITH STYLUS, CASE, & INSTRUCTIONS. New Listing Vintage Arithma Addiator Calculator Adding Machine w/Case Stylus Manual Germany Opens in a new window or tab. Pre-Owned. C $38.76. Top Rated Seller Top Rated Seller. German Addiator Arithma with Stylus Tool, Instructions and Case Opens in a new window or tab. Pre-Owned. Vintage Arithma Addiator w/ Case & Instructions & Stylus. do NOT contact me with unsolicited services or offers; post id: 7497848508. posted: 2022-06-17 16:23. ♥ best of . safety tips; prohibited items; product recalls; avoiding scams. Avoid scams, deal locally Beware wiring (e.g. Western Union), cashier checks, money orders, shipping. Addiator photo gallery. Addiator Addfeet Junior (ca 1960) Addiator Rechenmaschinenfabrik, C. Kubler, Berlin, Germany