Antique The Adder Adding Machine Calculator - Serial No 567 - A. Postans - 1902
Item History & Price
Reference Number: Avaluer:4269909 | Period: 1901 to 1950 |
Material: Copper | Modified Item: No |
Type: Scientific Instruments | Country/Region of Manufacture: United Kingdom |
Sub-Type: Adding Machine |
Antique The Adder Adding Machine Calculator - Serial No 567 - A. Postans -1902 ... Click images to enlarge Description For Auction:This is a terrific old adding machine called The Adder which has a patent number 24868902 showing it to be invented by Arthur Postans in 1902. It does carry that year alongside the patent number on the base together with the, rather aptly for a number machine, serial number of 567. It is a very compact machine as can be seen in the photograph of it standing beside an AA size battery and it is in fine cosmetic condition for a well used machine of its age with the polished copper plate on the base still looking good and a only a few blemishes to with what looks like an anodised copper body. Sadly, the keys have lost much of their chrome/silver plate, as would be expected of an item of this age. The registration marks, patent information and number display are all still clearly visible. Mechanically it may need a bit of attention, as it seems to work as intended for a while and then seems to jam up. It can be corrected by turning it upside down and pressing the Zero lever but I am pretty sure that this is a glitch rather than a correct part of its operating procedure. When the number 5 is depressed it registers as 4 on the display, so I think something has slipped inside. The base is secured with screws and access looks to be straight forward. I decided against having a go to correct the faults, leaving it to someone who is a bit more technical as I'm sure a good clean and overhaul will fix it.
All in all a lovely little machine that even as an ornament would enhance any setting or collection.
Please see photos to judge as to condition and completeness. Sold as per photos.Please feel free to email with any questions or for non UK postage costs which are typically Mainland Europe £20, USA £30, Australia £40.
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