GB Perf Question, King George VI

Probably nothing, but saw this example in a batch of kiloware. The right stamp seems to have an odd perf at the top. Not quite cut off, because I would expect sharp, clean edges. And not like the normal stamp on the left. Also, please note that it has an inverted watermark, which is common with this issue. Any thoughts?

Whats strange also is the stamp on the left has the cross on the top of the crown cut off. The one on the right has the complete cross. I just pulled a couple from my glassine and none of them have that type of rouletted perf. But the Watermarks are inverted on 2 out of 6....Gary

Gar. I don't think the way the cross is cut off is that big of an issue: The top trimming could have just been a little close on that set. To me, it appears that the stamp may have been double-perfed at the top which would be pretty strange, to say the least. And, yes, my findings on inverted watermarks isn't 1 in 3, but still significant at about 1 in 6, so no extra value with those items.

Anyway, something to put aside and move onto other items.

That would be unusual,double perf. Thanks for the share. Gary

The stamp on the right may be from a coil. I believe inverted watermarks are indicative of coil stamps. You will notice the right side perfs are cut, not torn. This is also indicative of a coil stamp. The left side perfs seem to be torn, so that is an anomaly. I would expect a coil stamp to have left and right perfs cut not torn. As to the "double perfs" at top, that seems to be where the dispensing machine cut the stamps off the roll when the stamps were dispensed.

The right stamp exhibits a number of clues to indicate it is a coil stamp.

The left stamp is probably from a booklet pane.

I'm not an expert in British definitives, but I am learning. More knowledgeable members may have different thoughts.

Robert

just curious here. Perf on 3-sides usually hints of a booklet, coils would be perf 2-sides (horiz or vert). Do GB coils come double (side x side)?

Eligies,

You are correct that in the USA, a coil stamp is imperforate on two sides (3 sides if the beginning or end of a coil). I still don't have a good example to show you, but Wiki has the following explanation:




I hope that someone can post a good picture to get the point across.

Here is a stamp that exhibits the torn/cut characteristics of a coil stamp. It is not the best example to use to illustrate.



The cuts are misaligned to the right. But, as you can see, the stamp was fully perforate on all four sides prior to cutting.

I have some Machin coil stamps where the cuts run through the center of the perf holes.

Robert

Here is a Machin vertical coil stamp. The left and right sides are cut while the top and bottom are torn.



A horizontal coil stamp is cut at top and bottom and torn at left and right.

Robert

If anyone new to stamp collecting is reading this and wondering how to recognise stamps from coils and booklets (in the UK anyway)... there is the TC (Torn Cut) formula to explain it. Working from the top and moving clock-wise...

Trainwreck's Machin stamp shows it to be TCTC (two CUT sides and two TORN sides) so it must have had a stamp above and below but not at the sides so it comes from a vertical coil.
The halfpenny Gvi stamp on the left of the original posting shows it to be CTTT (Cut/Torn/Torn/Torn) so it must have had stamps on three sides but not at the top so it should be from a booklet pane.

thank you scotzm & trainwreck: although I do not now collect ww, I do have from earlier (much earlier) days a cache of GB and will put on an extra eye when cataloging when/if Scott's has a coil variety noted based on info. just for fun,, any high value I might need to look for (my cache goes prior to 1965 most in glassines)??