Eurotone was a company from Bexley, Kent. In September 1974 it published a series of 'Four Phase Introduction' French, German, Spanish and English language guides which included either one tape (cassette or cartridge) or five 7" records in the package, along with various booklets containing useful phrases. Each course retailed at £5, and they were distributed by Lugtons in Britain. The discs were manufactured by Sonopresse, of Holland; and the German ones, which are the only ones that I've seen in the vinyl, were numbered in the SHOL-1940s.
Copyright 2016 Robert Lyons.