I bought this LP at an EFDSS event at the Royal Festival Hall, London in 1970 or 1971. I was not an EFDSS member, and the LP was still for sale to members only at that date, but the lady serving me kindly put her membership number on to the paperwork.
To clarify things, 'Free Reed' was the later name for Neil Wayne's 'The Concertina Newsletter' from Issue No.12 in May 1973. (See No.1 as PDF). The magazine expanded to include a list of records of interest for sale, which became a public record sales outlet, and eventually produced its own records (see Free Reed)
I know this isn't a sales site, but my daughter in London is selling this on ebay as she has to move flat and is decluttering. Nobody owns or wants it here, but when she saw one without a cover for £100 and one with a cover for £600 plus, she thought it was worth a try. Maybe we'll get a decent valuation to add!