Compatible with Olivetti Dora, Lettera 21, 22, 25, 31, 32, 35, 36, 36C, 82, S14, Studio 42, 44, 45, 46, Lexicon 80, Praxis 48 and Valentine. These spools, with a larger center hole, haven’t been manufactured in decades and are becoming increasingly hard to find,especially in this condition.
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