Internal request to order components for an office intercom system for the Clan Foundry.
| Identifier | ExFiles\Box 176\2\ img109 | |
| Date | 21th May 1940 | |
| from EJJ/HC. c. to Rm. {William Robotham - Chief Engineer} S. to A {Mr Adams} /Rm {William Robotham - Chief Engineer} /WEB. [Struck through] EJJ/HC.1/PC.21.5.40. S.7/Order No. 811. Clan Foundry - Office Intercommunication. Please send an order to Messrs. Batterby & Hefford Ltd., Derby for:- supplying 1 - 6-way Fig. 281. Call Board complete with "on" "off" Switches, monitor lamps. Price:- ...... [Handwritten initials JAH] 6 - 1-way Fig. 282. Lamp Units. Price:- ...... £1. 6. 6d. each. 1 - Fig. 1132 Transformer primary 200/250 volts, single phase, secondary, 12 volts 20 watt. P.T.O. | ||
From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).