GB Queen Victoria Cut Corner Or Cinderella?

Hello all, I came across this "stamp" in an old album but I think it might be a cut corner or cinderella. There isn't a face value so not sure if someone just cut this out of a advertisement for "Postage Stamps" . The paper is very thin. Is this a well known fake sold to dupe collectors or something more interesting?
Thanks for your input!

Looks like a cut out from a magzine or publication .

Certainly not a fake, nor a stamp. If by 'cut corner' you mean 'cut square' or cut-out from postal stationary, then also no!
It is some kind of publicity print or a label. If the back is unprinted, it is unlikely to come from a magazine or similar publication. It could be from a wrapper, or a flyer.

I had meant 'cut square' thinking it might have been from postal stationary. The back is unprinted so I suppose it may have been the cover or wrapper for stamps seeing that is says. "postage stamps". Were stamps at this time sold in books/packs that may have had a cover or were they only sold as loose individuals?

My best guess, and its exactly that-
It "almost" looks like a cleaned or stained stamp. Seems like maybe a publicity item from a printing firm, or a seller of "postage stamps."

Booklets were't produced until Edward VII's reign. Probably cut from an advert or similar.

Either here, or on another forum, there was a thread about the use of what looked like a stamp, but was not for a product label that had little to do with stamps.
This one is far off any real design. The stars in the top corners suggests a design used between 1840 and ca. 1855. The portrait does not look close to the original. Stamps were not sold in packets at that time. It may have been a label from a packet of stamps sold by a dealer, anywhere between 1910 and 1970. My guess would be post WW II, especially since it is printed in red.

A name that comes to mind is Rush Stamps. But they do a much better job.

As I remarked earlier, if the back is unprinted, it almost certainly was not printed in a brochure or magazine. A single-page flyer would be possible.

As mentioned it probably is a facsimilie for publicity and used to dress up an envelope for advertisement of stamps or a packet as NSK mentions and it most certainly would not have print on the back side in that case.