Siemens & Halske Intercom Telephone

1918

Screw Machine Products 36 station "Select-O-Phone" desk set

1919

Select-O-Phone 33 station desk set

1910

Screw Machine Products Co. · Intercoms, Candlesticks, American · Source/via: Pete D'Acosta (website)

Select-O-Phone 33 station desk set

About This Phone

Unique Screw Machine Products Company Select-O-Phone. 33 station dial. Excellent original condition.