The reels and the read / write head.
1940 - 1950. No brand specified, it may result from small scale production.
The steel wire (1) has been enlarged to be visible.
Les bobines et la tete de lecture / ecriture.
Le fil d'acier (1) a été grossi pour être visible.
(1) Tophet M from Gilby Wire S.A. - Ø 90 µm
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