QUOTE(Chris Timson @ May 18 2004, 06:40 PM)
Mayfairs were not made by Wheatstones but by some Italian outfit and resold under the Wheatstone name.
Actually, they were made by Wheatstone's (and I bought the remaining stock of parts off Steve Dickinson a couple of years ago), using imported accordion reeds, but they called them "The May Fair" in order to avoid putting the Wheatstone name on them.
My late friend Harry Minting, who was then the sales manager of Wheatstone's, saw them as a way of trying to popularise the concertina at the time. He demonstrated what was evidently the May Fair English (perhaps a prototype ?), "The approximate price is £12", at Cecil Sharp House on 8th December 1953, but it was not until the English Dance & Song of Feb./Mar. 1955 that they were first advertised, as "NEW ! The May Fair English Concertina, specially designed for the Folk Dance Musician", available in 30-key English, or anglo, versions for £13, and as a 36-key English for £18 (as Wes has mentioned). The last advertisement appeared in April 1959, so production probably ceased when Wheatstone's moved to Duncan Terrace.
Edited to add photo of a MayFair 30-key English.