Cayman Is 1958/68 Five Aerogrammes Perf Cancelled Ex Bradbury Wilkinson Archives

Postal stationery aerogrammes.1958 2 1/2d 6d and 9d and 1968 6d and 9d unfolded each overprinted SPECIMEN in red and punched CANCELLED.Ex Bradbury Wilkinson archives.H&G 1-3 5-6 (Specimens) only 50 ever made. Ex James Podger