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Stamps,
XXI Youth Science and Technology Invention Contest
issue
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1 to 5 of 5
Macao
postage
2006
, Jul 28
XXI Youth Science and Technology Invention Contest issue
unwmk
(no perf info) (5 stamps)
-
1.50p
multi
—
—
-
2.00p
multi
—
—
-
2.50p
multi
—
—
-
3.50p
multi
-
10.00p
multi
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1 to 5 of 5