Provisional description of transmitting and receiving equipment, type SRR 297/00 : provisional description of SRO 297/00 receiver / Philips Telecommunicatie Industrie N.V. Concise description of transmitting receiving equipment : description sommaire de l'installation d'Emission-Réception, type SRR 230/00 / Philips Telecommunicatie Industrie Creed & co. ltd. The morse transmitter, Model no. 11 Collins radio company. 45A transmitter 75th Anniversary Catalog : Smith & Wesson Hazeltine Electronics Corporation. Preliminary instruction book for navy model TCS-6 radio telephone and telegraph transmitting and recieving equipment