Old telephone bell chime

Nice chime for a retro decoration or a collection. It would be an old telephone chime. It seems completely authentic to me, not a late copy for decoration. It seems to me complete in terms of the mechanism and in rather good condition, but obviously I have not tested it, perhaps it is possible to divert it and/or make it ring again. However, it is missing a small hook on one side of the case which covers the mechanism, but despite this absence, the case remains in place. It has several inscriptions engraved in the wood (200 ohms, 250 59...). It also has two pierced tabs to attach it to the wall. It is almost in its juice, I dusted it (exterior) and I passed a little fine iron wool on the bell because it was very dirty. It has various marks and traces of use, including traces of beige paint on the edges of the base. It measures approximately 21 cm in height, 10 cm in width and 7 cm in depth.