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This Adler 1121 PD Desktop Calculator either used until 1992 or purchased in 1992, im still waiting to have a bigger desk to use it plus i love the sound the keys
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Adler 80C – Erix Collectables
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TA ADLER 121PD ELECTRONIC MACHINE CALCULATOR- Vintage Tested & Working | eBay
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Vintage TA Triumph Adler LD64 Electronic Calculator [G+] Working
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