NORTH KOREA (1980) Conquerors of Sky & Space*. Sheetlet of 5 + label overprinted SPECIMEN. KSC No 1976.
AVAILABLE AT $35
NORTH KOREA (1987) Roland Garros*. Plane*. Specimen pair. KSC No 2759, Michel No 2889.
AVAILABLE AT $15
ST. VINCENT (1978) Wright brothers*. Set of 4 overprinted SPECIMEN. Scott Nos 537-40, Yvert Nos 522-5.
AVAILABLE AT $15
MONTSERRAT (1981) Planes*. Set of 4 overprinted SPECIMEN. Scott Nos 472-5, Yvert Nos 472-5.
AVAILABLE AT $15
ST. KITTS (1983) Aviation bicentennial*. Set of 4 overprinted SPECIMEN. Scott Nos 123-6.
AVAILABLE AT $15
NICARAGUA (1954) Sabre jet. Overprinted SPECIMEN and printed in different color than issued stamp. Scott No 786.
AVAILABLE AT $40
NICARAGUA (1954) Captain Dean L. Ray, USAF. Overprinted SPECIMEN and printed in different color than issued stamp. Scott No C346.
AVAILABLE AT $40
NORTHERN CYPRUS (1978) Jet*. Corner block of 4 overprinted ORNEK (specimen). Scott No 59.
AVAILABLE AT $15
PARAGUAY (1984) Dorner DO J Wal seaplane. Sheetlet of 5 with labels overprinted MUESTRA. Scott No C572.
AVAILABLE AT $25