Stamps of Montenegro, 1pa denom
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postage
1907, Jun 1 unwmk (no perf info)
| - | 1pa | och | Prince Nicholas I |
1910, Aug 28 proclamation of kingdom issue
| X | 1pa | blk | Prince Nicholas I as youth |
1913, Apr 1 1913 issue
| X | 1pa | org | King Nicholas I |
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