GUINEA (1966) Water cycle*. UNESCO emblem*. Imperforate pair with color orange missing. Symbolic water cycle, issue was for the Decade of International Hydrology. Scott Nos 435, Yvert No 286.
AVAILABLE AT $40
GUINEA (1966) Water cycle*. UNESCO emblem*. Imperforate pair with color orange inverted. Symbolic water cycle, issue was for the Decade of International Hydrology. Scott Nos 435, Yvert No 286.
AVAILABLE AT $40
BANGLADESH (1983) IWTA Terminal*. 15p service stamp in block of 4 with overprint in red. Similar to Scott No O39, but in the issued stamp, the overprint is in English instead of Bengali.
AVAILABLE AT $40
ALGERIA (1936) Oued river at Colomb-Bechar. Vertical misperforation with the value shown on the opposite side. Scott No 94.
AVAILABLE AT $25