Hello,
Below is a CSA #8 which I obtained in 2019. It has a fake cancel that aligns very well with the cancel described in Powell/Kimbrough CSA Fakes & Forgeries book (Page 111). The key element is the thicker "L" with an elongated arm at the bottom.

I bring this up because I ran across a very similar looking cancel on a CSA #5 stamp in the upcoming Cherrystone Auction. (Feb 01/02, Lot 263 on SAN). The stamp is listed with a 1998 PFC which at the time had the stamp on a small piece. The cancel just does not look right to me and (like the stamp above), leads me to think it is from John Fox. The PFC cert on piece is #327910.
The offered stamp is very nice with large margins but I personally would have it resubmitted if I were to bid on it. Open to other thoughts on this item. Always ready to learn.
Thanks in advance,
Hobsun