https://www.facebook.com/groups/705152958470148/posts/1330939455891492/
Olympia SM1 with metal bumps placed onto the plastic keys of a keyboard. One on the 6 and J, two on the Z and N (a German keyboard) presumably for the blind.
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Olympia SM series (part 1, 1948-1964)<br /> by [[x over it]]<br /> accessed on 2025-09-05T17:14:33
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