Pattern No. B255
Comprises - Granular Carbon Transmitter, Watch Receiver, Cord, Automatic Switch-hook, Induction Coil, Bell (fitted on backboard), and Push Button.
Patterns Nos. B250 and B255
These Battery Wall Sets are cheaper forms of instruments than B245, but are in every way well made, useful and efficient. Pattern No. B250 has the Transmitter fitted inside the case with Projecting Mouthpiece, and Pattern No. B255 has the Transmitter fitted outside the case.
This Pattern can also be supplied in Art Green Wood Case with fittings to match.
Was B41 in the 1903 Catalogue.