Two-motion selector made by North Electric Co, Ohio, USA, fitted at Dundee and Broughty Ferry automatic exchanges, 1924 Two-motion selector made by North Electric Co 1924
Two-motion selector, fitted at Dundee and Broughty Ferry, 1924 Two-motion selector, fitted at Dundee and Broughty Ferry, 1924 1924
Two-motion selector, one of two, 1924, in service Holborn Tandem Exchange 1927-1977 Two-motion selector 1924