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| Catalog Number | 1213a |
| Description | Canadian Tiger Swallowtail |
| Denomination | 37c |
| Color | multi. |
| Variety | se-tenant block of 4 (1210-1213) |
| Date Issued | 07/04/88 |
| Perforation | 12 x 12 1/2 |
| Printer | Litho. |
| Years | 1988 |
| Sorter | 2041 |
| Watermark | Unwmk |
| Series | |
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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=1213a |
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