I’m interested as these are often useful research material.
Basically they’re copies of the club books dispensed to members of the NAF in those particular years (with an updated edition having been produced every season since). The sort of info they contain are details on the federation itself, its officials, a set of maps of their waters at that time (look at
http://www.northumbriananglersfed.co.uk/maps.htm and you’ll see that they’re still using some from that era – Clara Vale Pit (Tyne 1) closed in the sixties!), info on how the previous season fished (on the Coquet & Tyne) and a list of the cups awarded for best salmon, first salmon of the season, best brown trout/ sea trout, etc.
NB. not really a guide to ‘north country angling’ as a whole, just to the fed’s waters on the Tyne & Coquet.
What shop did you see them in and how much were they asking?
Cheers for the info!