WE wall dial interphone? - 1
By Alan Goldberg, ; posted August 30, 2017; hits 777
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| Need help identifying this. See photo 1 for details. Has a marking "577A", but no further info. IND 46; bulldog transmitter marked 8/46; 5H* dial marked 2/48; switches arranged as 2 pole 12 throw (upper rt marked with an ext. number "2801", upper lt marked "HOLD" but latches); cow bell ringer. How would this be used? |