From Festipedia, hosted by the FR Heritage Group

Gylb or (Gwirfoddolwyr y Leiniau Bychain - "Volunteers on the Little Lines") is a low budget, no nonsense, quarterly subscription publication for Volunteers of both the Ffestiniog and Welsh Highland (C) railways. As such, no pictures, no graphics, just hard information. The Gylb. is produced and paid for by the Societies for the benefit of the F.R’s & W.H.R.(C.). Volunteers. It costs about £1.5k. p.a. and this money is, therefore, not available to the railways. We will be delighted to make it available to anyone who is not a currently-active volunteer on payment of £6 for four issues. The cash / cheque / credit card / etc. should be made out to: Ffestiniog Railway Society and sent to A. J. Price at: 50 Thistle Downs, Northway, Tewksbury, Glos., GL20-8RE. Should any active volunteers care to help with these costs, we would be pleased to receive their contributions at the same address. Gylb originally stood for "Gwirfoddolwyr y Lein Bach" (... the Little Line, singular), but since involvement with the WHR it now has a plural meaning.

An earlier name was Groups Information Memorandum.

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