| Pic Thblink | |
| Catalog Number | 1138a |
| Description | Canada Day - Science and Technology |
| Denomination | 36c |
| Color | multi. |
| Variety | se-tenant block (1135-1138) |
| Date Issued | 06/25/87 |
| Perforation | 13 1/2 |
| Printer | Litho. |
| Years | 1987 |
| Sorter | 1890 |
| 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=1138a |
| Pic Detlink | |