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| Catalog Number | 173a |
| Description | Parliamentary Library |
| Denomination | 10c |
| Color | olive green |
| Variety | imperf. pair |
| Date Issued | 09/15/30 |
| Perforation | Imperf. |
| Printer | engr. |
| Years | 1930 |
| Sorter | 480 |
| Watermark | Unwmk. |
| Series | |
| Paper | |
| Ebaylink | http://www.ebay.com/csc/Canada/3478/i.html?LH_Complete=1&_armrs=1&_from=R10&_ipg=&_pcats=260&_sop=16&_nkw=173a |
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