Circulated Special Print Design A27 Scott#106?

Today is the day of 'circulated special prints' for me
The first image is of a stamp printed on very thick paper. Much thicker than the one next to it.
It has no grill and presents the characteristics of the A27 (heavy line cut below the stars etc.).
The three parallel vertical black lines are a cancelation, I believe. And the stamp was cut with scissors by the look of it.
So, if it is a #106 then it is a circulated #106.
What do you think, please?

alas, this is just a #68 that has lived an incredibly hard life and really should be put out of it's misery.

Why is the paper so thick, please?

maybe there is a 106 directly stuck behind the 68? :)

I doubt the hinge was made out of a 106

maybe you could measure all of your 68 and give the results including this one. should be with a tool that can work at least with 0.01mm steps.

If it is thick then it has been rebacked with something. It has a huge crescent shaped thin in the middle from where some of the rebacking material has been removed.

Revcollector, indeed, there is only a very thin layer left in the area you are pointing out!
On my digital mini-microscope, I can't see two layers being overlayed: the edge simply looks like one chunky layer. Same thickness in the perforations area.
Stamperix, yes, I did compare it with two other 68s: it is much thicker, it feels almost double. I will get a micrometer and measure it precisely. The thing is, since I am a heavy smoker I can distinguish between thicknesses of cigarette rolling paper - and there the differences are in the realm of less than 0.1 mm

Just looking at the reverse image I can see multiple layers of paper. Perhaps the stamp was glued to an envelope and the remains of both the glue and the envelope paper are still there. That would make it feel thick. But it is a #68, and it is in the kind of condition that makes it appear to be a victim from a philatelic war zone. At this point it should be buried with dignity.

Revcollector, the area around the perforations is clean enough to allow observing if a foreign layer of paper would have been applied.
Anyway, how on Earth can a stamp be buried with dignity, please?
My first thought was around burning it

There is a clear line just below the perfs where the paper ends. There are at least 3 different shades of paper on the back of the stamp on the left side alone. Just try soaking it in warm water for an hour or so. Unless they used some kind of water resistant glue, paper should float off.

Revcollector, thank you very much for the tip! I will give it a go tomorrow.

... a bit later than I thought: I soaked the stamp and the only things coming off are the old hinge and a bit of paper left from the cover. So, still to explain the very thick paper ...

I'm thinking this is one of the special 1903 printings the USPS did on extra thick paper - trying to simulate the effect on stamps from a potential Mexican-American war. They took some special printings & butchered them to test the effects of the war. Nice item - very rare!!

Also note that the second stamp in the original posting seems to have evidence of the TAG variety, noted in this previous thread:

https://goscf.com/t/37891

Not much of a premium, but still a nice extra.

This is not a special printing in any way, shape or form. The plate was worn when this stamp was printed. Which was in the 1860's. If you are expecting quality control of the paper from that era you will be doomed to disappointment. Who knows what happened to it over the last 150+ years. You can always spend $27+postage to send it to the PF for an opinion.