Post Office 332 telephone, 1938.

UNITED KINGDOM - JUNE 27: This black bakelite telephone belongs to the 300 series produced by the British Post Office. It combines the case designed and developed in Scandinavia (including an integral bell) with the Neophone's handset and drawer for dialling codes and personal numbers. Because the sloping front resembles a dish for cheese it was nicknamed the 'cheese dish' telephone. In general use from 1937 until the 1960s, these telephones were exported to Australia, India, New Zealand, South Africa and many other countries. The design was also adopted in Europe and the United States. (Photo by SSPL/Getty Images)