|AUTOMATIC DESK TELEPHONE
Insect-proof. With hand microtelephone and dial, for use with separate bell set T4066.
Insect-proof Telephones - The following telephones, T4074, T4075 and T4126, are similar to
T4070, T4072 and T4127 respectively, but have all apertures covered with metal gauze or otherwise suitably protected against the ingress of insects. The telephones have a tropical finish.
Taken from the 1951 ATM Catalogue