Stamps, Sultans Crest & Muscat Harbour design
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Oman
postage1970, Jun 27 1970 issue unwmk (no perf info)
| - | 25b | gray & vio | Sultans Crest & Muscat Harbour | — | — | |
| - | 30b | gray & ultra | Sultans Crest & Muscat Harbour | — | — | |
| - | 40b | dkgray & brnorg | Sultans Crest & Muscat Harbour | — | — |
1971, Jan 16 sultanate issue ovpted
| - | 25b | gray & vio | ovpt, Sultans Crest & Muscat Harbour | — | — | |
| - | 30b | gray & ultra | ovpt, Sultans Crest & Muscat Harbour | — | — | |
| - | 40b | dkgray & brnorg | ovpt, Sultans Crest & Muscat Harbour | — | — |
1972, Jul 1 ovpted
| - | 25b on 40b | dkgray & brnorg | Sultans Crest & Muscat Harbour | — | — |
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