Newfoundland SC 112 Color Variant?

I know that judging color from a scan is problematic. In person the stamp shown below appears more blue than the dark green that both Scott and Unitrade list. Is there a recognized variant?

Stanley Gibbons lists 2 shades for this stamp- SG 63 aniline blue and SG 63a greenish blue. Your stamp looks like the aniline blue, which is the more common shade. Sorry if this is something you already know, but aniline inks usually penetrate deeply into the paper so you can see the ink prominently from the back of the stamp. Aniline inks usually also look "oily" and will fluoresce under a UV lamp.

A nice possibility, and I wish it were so. But Gibbons design type 63 (= SG 123) is the 8c with portrait of Prince George. For the 10c portrait of Queen Alexandra (design type 65 = SG 125) my copy of Gibbons lists only deep green.

My apologies! I was looking at the number for the type of the stamp, not the actual Gibbons number which is indeed 125 and listed only as deep green. I guess at my age I need a better magnifier!

Not at all. My wife had to read me my copy of Gibbons. No mere magnifier suffices any more.

This is remarkable. I just looked at my copy, lovely deep green. Do you think someone "treated" the green shade with some chemical to turn it blue? Otherwise, what a find! (I love this set).

A favorite set here too. My blue copy is very attractive. Appears unused, though no gum. Just hope it's genuine.

For what it is worth, on page 487 of Robson Lowe's Encyclopedia of British Postage Stamps (Vol. IV North America) he says "The so-called aniline blue was made by holding a sheet of the normal stamp in front of a steaming kettle; at first this was considered to be the rare shade but as more and more were made it became the common one. Similar treatment of the 4c. was less apparent"

This was referring to the 8 cent.

I found a dealer's site that is selling copies of Newfoundland 1911 10 cent Queen Alexandra in a variety of shades, but none as blue as the one in my original post.

https://www.worthpoint.com/worthope...a-1862228454