#579 Imperf At Bottom ~ Unlisted ?

The bottom most stamps appear to be imperforate for these stamps. https://goscf.com/t/6268.

Interesting... didn't know that, relative to the 579... why would you think, then, it's not listed in Scott as a variety... such as 540v?

Technically, these could be considered like straight edges. Why? Because they were perforated 11 horizontally by a so called flat plate perforator. These stamps were originally intended as coil stamps since they were web-fed printed from 2 x 170 (17 x 10) stamp subject plates. They were web-fed perforated vertically 10 by a coil bar perforator. However, some of these were broken down as coil waste into sheets of 170 (17 x 10), panes of 100 (10 x 10) and panes of 70 (7 x 10). They were also sheet-fed perforated horizontally 11 by a flat plate perforator. In doing this, a perforator that is used for perforating sheets of 20 small subjects across was used to perforate 10 small subjects across. The center cutting wheel would give a straight edge between the 10th and 11th stamps of a usual 20 stamps across but for these 10 stamps across it was on the bottom margin that the imperforate straight edge occurred. This is most likely why they are not considered a variety just like regular straight edges are not. https://arago.si.edu/record_15795_img_1.html

Often called a "fantail". The unusual part is the lack of perforation going all the way to the very wide bottom. It is not an error since it was a deliberate production decision applied to salvage the entire batch. IMO, it should at least get a footnote of explanation in Scott, whether there is any value difference or not.

yes a footnote to explain would be good

As a tangent, here is a fantail 538 pair on cover.

Hi, what does IMO mean?

Stampmaster

In My Opinion.

IMO = in my opinion. I should make you a pop up point about it!

It's also interesting that the right side line of perforations does not include a perf hole corresponding to the last perf hole of the left line of perforations. The last position on the right side appears to be "blind".

Hi, I have no idea what a pop up point is!

Instead of going thru that trouble, why no just follow what we all learned in High School as such:

In My Opinion (IMO). You need to understand your readers may not know exactly what your abbreviation means.

But, thanks for explaining.

Good luck

Stampmaster

I will correct myself, I meant to say "pick up points" in my previous post. It was a gentle tease to you for using that phrase in many of your posts in the past few months, and which nobody else uses at all in these threads - thus exactly as you mention, it does not communicate, even when repeatedly defined, because it is not a part of common usage.

Good thing you didn't use IMHO. Yes it is a FT fantail.

Hi, I understand, instead of Pick Up Points (PUP) what is used today?

PUP was used perhaps a long time ago by stamp collectors, old habits die hard.

Stampmaster

Hi I forgot to add in my last posting what is IMHO?

What is FT?

I suggest you spell it out like I do, so that everyone old like me and new young collectors understand what your abbreviation stands for so there is no big misunderstanding!

Stampmaster