The General Post Office (GPO) was the postal system and telecommunications carrier for the United Kingdom until its dissolution in 1969. Contents: Three copies of The Post Office Guide (Aug. 1940) (Sep. 1937) (Oct. 1947); a GPO booklet on Belfast Lists of Streets (1959); a Post Office Magazine from Dec. 1962; different ‘Green Paper’ books on various GPO topics; a Post Office Telegraphs Office Code Book (1894); ‘Het Nederlandse PTT Museum’ a brochure in Dutch (1994); National Postal Museum Review of 1992, 1993, 1995; many photocopies of a ‘Foreign & Colonial Parcel Post’ Certificate from 1903; a subsequent real certificate, [1903]; The Post Office Archives Brochure; a typescript entitled ‘The Messenger Box as a Distinctive of Foot-Messengers (1960s); ‘Meet Royal Mail in N. Ireland’ poster (1992); empty envelopes addressed to W.S. Cormack, 1906; a British Postal Order payslip (1967); Post Office Telegraphs ‘Charges for Telephone Trunk Wire Conversations not exceeding Three Minutes’ booklet (1897): Rules for Postmasters and Sub-postmasters regarding Ulster Savings certificates’ booklet (Dec. 1923); National Postal Museum tourist brochure (1988); Notice: Presentment of New Post Road from Ballymoney to Coleraine, Aug. Godby and Henry R. Paine.