| Swift Canadian Co. (Toronto and elsewhere) |

Are these different patterns?
Hmmm...

The broken code hole appears on a stamp cancelled in Winnipeg on Nov. 25, 1924. More research need to be done to determine just when the code-hole pin broke.
The S4 perforator appears to have been relocated from Winnipeg, MB, to Moncton, NB. My collection has a gap in issues from 1935 (Sc. 212) to 1942 (Sc. 249). I assume that the move took place at some point during this time.
| Town Cancels on Perfin S4 | ||
|---|---|---|
| Winnipeg, MB | -- | Sc. 106 |
| Winnipeg, MB | Oct. 20, 1917 | Sc. 116 |
| Winnipeg, MB | Feb. 24, 1923 | Sc. 108 |
| B. L. & Winnipeg R.P.O. | -- 1924 | Sc. 119 |
| Winnipeg, MB | -- 1926 | Sc. 119 |
| Winnipeg, MB | -- | Sc. 119 |
| Winnipeg, MB | Aug. 22, 1930 | Sc. 150 |
| W'peg R.P.O. | -- | Sc. 119 |
| W'peg R.P.O. | -- | Sc. 167 |
| Silver. MB | -- 1933 | Sc. 167 |
| Quebec & Cochrane R.P.O. | -- | Sc. 197 |
| Moncton, NB | Oct. 18, 1944 | Sc. 257 |
| Moncton, NB | July 24, 1945 | Sc. C8 |
| Moncton, NB | Apr. --, 1947 | Sc. 254 |
| Moncton, NB | May 7, 1947 | Sc. 274 |
| Moncton, NB | May 9, 1947 | Sc. 274 |
| Moncton, NB | Aug. 27, 1947 | Sc. C9 |
Now that we know about the broken code hole pin, the period of usage reported for S3 in the BNAPS Handbook is suspect. These are the periods of usage that I can confirm for the two perforators.
