This is a vintage GPO 312L black Bakelite telephone with a pull-out memo drawer and a "Call Exchange" button for shared service lines.Model: This telephone is a GPO 312L, a British desk telephone model introduced around 1949 and produced through the 1950s.Key Features: It features a rotary dial with both letters and numbers, a "Call Exchange" button for shared party lines, and a pull-out drawer at the base for storing telephone numbers.Material: The body is made from Bakelite, a durable, early form of plastic popular in mid-century electronics.Modern Compatibility: While these phones were originally designed for older analogue exchanges, many sold today have been professionally restored and converted to work on modern landline
