Stamps of Singapore, 10 Mar 1975
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postage
1975, Mar 10 9th Biennial Conference of International Association of Ports and Harbors issue unwmk p. 14
| X | 5c | multi | abstract prows & waves | |||
| - | 25c | multi | freighter & ship's wheel | |||
| - | 50c | multi | ship & flags | |||
| - | $1 | multi | Ship |
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