Rule Book, British Transport Commission, date 1958, "Standard Codes for Telegrams", card covers, grey, number of pages 88. Inlcudes Supplements 1 & 2 dated July 1960 and April 1961
Rule Book, British Transport Commission, date 1958, "Standard Codes for Telegrams", card covers, grey, number of pages 88. Inlcudes Supplements 1 & 2 dated July 1960 and April 1961