This leaflet mentions the Knitters Circle and has a membership application form:

Patons Knitters Circle Membership of the Knitters Circle grows larger month by month as more and more knitters realise the value it offers. Three times a year, all members receive Knitters Circle News, packed cover-to-cover with information about Patons yarns, knitting hints, bargain buys, free exclusive designs, feature articles and illustrations of all new Patons designs. When you join you also get a Knitters Circle Year Book which contains illustrations of all Patons designs, - All this for only 30 p per year – well worth joining so just fill in the coupon overleaf. To: The Knitters Circle, Kilncraigs Mill, Alloa, Scotland, Dear Joan Wright…

Pamphlet published in 1971 by Patons & Baldwins Limited