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| Catalog Number | 156c |
| Description | Cantilever Bridge, Quebec |
| Denomination | 12c |
| Color | slate black |
| Variety | vert. pair, imperf. horiz. |
| Date Issued | 01/08/29 |
| Perforation | 12 |
| Printer | Engr. |
| Years | 1929 |
| Sorter | 439 |
| Watermark | Unwmk. |
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| Ebaylink | http://www.ebay.com/csc/Canada/3478/i.html?LH_Complete=1&_armrs=1&_from=R10&_ipg=&_pcats=260&_sop=16&_nkw=156c |
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