Canadian Philatelist - Two Articles Needed

There is always the possibility they never knew it was laid paper. I have bought two laid paper stamps that were misidentified as the normal stamp. One was a #31 and the other a real prize #32. The one who altered the stamp may have been trying to get a little more money out of a 1-cemt LQ just passing it off as a mint one regardless of the paper type.

At this point, knowing that it has been regummed, would there be any advantage in removing the added gum?

If the gum were removed you may or may not find hidden faults. The other advantage is the re-gumming automatically gives the stamp a pink certificate from the VG Greene Foundation as an altered stamp. If there are no other alterations and the stamp is a genuine used laid paper it has a better chance at receiving a green Certificate from the Foundation. The certificate would also mention any other noticeable faults that may be present. If it is a fake they would certainly let you know that as well.

To bring closure here, the stamp I was researching received a PF certificate that is consistent with the evaluation that I had performed: