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| Catalog Number | 261a |
| Description | Munitions Factory |
| Denomination | 50c |
| Color | violet |
| Variety | imperf. pair |
| Date Issued | 07/01/42 |
| Perforation | Imperf. |
| Printer | Engr. |
| Years | 1942 |
| Sorter | 675 |
| 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=261a |
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