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postage
1983, Aug 4 Bangkok 1983 b issue wmk. hourglasses p. 12
| - | 7.50b | multi | Postal Wickets |
1984, Jan 25 1984 issue wmk. zigzag lines (Thailand) p. 13.25x13
| - | 7.50b | King Bhumibol Adulyadej |
1985, May 1 25th Anniversary of Thai Airways issue wmk. CARTOR (no perf info)
| - | 7.50b | multi | Douglas DC-10-30 |
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