Tan tropical gascape marked pcd 291/44/4 80 Ope (Tp/Ark)

A very rare tropicalGasplanein unissued/mint condition. The gasplane is nicely markedpcd.OpeindicatesOppanol: a transparent versatile polymer, impervious to water and many different gases and resistant to chemicals.(Tp/Ark)indicates these where made forTropicalorArcticuse. One of the rarest gascapes to find!