Great Britain Stamp, Sg#: 212 ,1 Pound ,1891- Control Number At Right Corner?

NSK, I also observed the uneven cut of the perforations at the bottom side and as rogdcam pointed they were most robably made by scissors. This bothers me seriously. The stamp was offered to me ,for a substantial sum - 1700 euro.The owner mentioned in his email tath it's
hinged with Original Gum but didn't not provide me a image of the back of the stamp. I asked ,for additional images and now I wait,for his reply on this matter.
Whether there was a cancelation on the upper part of the stamp I could only guess.
When I tink again wath Cjd wrote in his post has logic. The feature does has a resemblance to the letter "S".
If it's a letter why is it positioned diagonally not straight on the right marginal side of the stamp ?
Is there any information about it in Stanley Gibbons Specialized catalog and may this be considered as commonly seen printing error ?

No, it is no constant flaw. It, most likely, is caused by some foreign matter.




Again, as there was a stamp TD to the right, there cannot have been a marginal marking in that position. The registration sheet does not show this flaw.
A screw comes to mind looking at the shape, but, as far as I am aware, no screws were used in that position. Or in any position of the plate for this stamp.

The smudge at the top and the surface rubbing at the 'G' of 'POSTAGE' diminish its value. 1,700 EUR is about 45% of a perfect example you can buy from Stanley Gibbons. I think that is very much overpriced for the quality of the stamp.

Edit: added quote and remark about 'screw.'

The registration sheet can be found here:

https://cdn.collectionsbase.org.uk/...R080_04o.jpg

HSK,you are right about the stamp, it has to many defects for the price which is asked for it and I'm not sure wether it genuine or not. And further more there is a very large investment of money involved here.

There is no such feature there, I could see this on the image of the sheet clearly .

As I specialise in UK stamps, I like that stamp in mint condition. Even limiting the scope of the collection to UK stamps, this stamp in mint condition will set you back quite a lot. You, probably, could buy all special stamps mint for that amount.

However, if your collecting interest is much wider, you either need to be very rich or just specialise in high-value stamps. Otherwise, you might find your your collection remain very small when such stamps take a big bite out of your budget.

If you want to see the full sheet of the stamps as issued and perforated look at Lot 782 in the link below. I will sound like a broken record but the margin size and perforations at the bottom of the OP's stamp are NOT possible.

https://siegelauctions.com/lot_grd....mitNext=Next

Thanks Rog, always wanted to see that, Sheet? Pane?

How many were "printed on" ? 80? 160?
I guess this sheet Pane is rows 11 to 20.

How many, as in the number on the sheet?

That picture is a counter sheet of 40. I am not completely sure whether the printer's sheet had four or two panes. I think two, making it 80. I should check my Vol 1.

Wow. Scissor-cut perfs are not the fraud some of you seem to make it. Therefore you must think that the US reprints/reproductions that are normally scissor-cut are the object of fakery, as well as all those covers originating from New Orleans in the mid-19th Century with stamps that are scissor-cut. And add in the recent worldwide new issue stamps with perfs that are knife-cut but still have complete perfs.
.

"printed on" may be just an Australian Term. (Brusden White)

Going by your registration sheet, looks like 80.

Surprised by the very fine tolerances for stamp separation. (Perforations)
Looking at the 40 block, and perf guaging, hard to understand how anyone would
employ scissors for separation.

It's not about scissor cuts per se but rather the non-linear cut on the OP's stamp would be difficult to replicate. But the larger point is the size of the bottom margin in combination with the unusual perforations. It does not sit right at all. And given the nature of these stamps why on earth would anyone bother with scissors in the first place? It does not compute. At all. I will leave it at that.

Evidence the Green £1 has been forged
2019
Author : Bill Tonkin

Robson Lowe says 2 vertical panes of 40 stamps each. (4x10, obviously.)