Marcin K. Wichary, Esq. Keyboard Identification Servicehttps://twitter.com/adereth/status/1071873857139675141 …
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I don't know what WT is. It's the shift key, could be short for 'wagen tillen'? To be sure I'd have to ask a typewriter specialist like @mwichary ..
'WT' could be 'Wissel Type' (change type) instead ('wagen tillen' means lift carriage). I could not find a manual to verify. Annoying things about this keyboard are the lack of 1 (use l instead) and ! (composed of . and ').
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