Lot 552 Great Britain

QV: Azemar High Speed experimental cancellation trials: Two in date covers or a front, plus a small piece showing the first trial dated Y1 / LONDON / MY 20 / 69 with A1 three section Azemar cancel on 1d red, 1871 (2nd trial) Complete cover with CR / LONDON / 1 JY / 71 cancel and a front with AB / LONDON / 29 AU / 71 cancel nearly complete. Nice trio. (One piece, 1 cover, 1 front).