Ques. Re: My 1 Cent Benjamin Franklin 1926

Hi, I'm trying to determine if this is a rare Scott 594 or a more common Scott 552. Thanks!

Neither.
A perforation gauge will show this to be 11 x 10.5, which is Scott 632.

Always show the back of the stamp as well. This is the first step to distinguish flat plate and rotary plate stamps.
Scott 632s tend to be lighter green that your stamp, but a perf measurement should go along when posting your stamp image.

To elaborate more on my previous post, while the reverse side is indeed often useful, in this case a comparison of the top/side perforations is conclusive. The size of the stamp is approximately 2cm, the same width of a perforation gauge. When the top and side are aligned at the lower tooth, they differ by 1/2 at the top. The only (non-overprinted) catalog number for this issue featuring a rate differing by half is the perf 11 x 10.5 Scott 632. The shade is also consistent with ths printing.

Thank you both so much for taking the time to reply to my post. Stamps are fascinating, but can also be frustrating to figure out sometimes! I appreciate the great info.

Salute,

I am happy joining this community, thank you. I started my collection few years back focusing on Us, German and French ones. Lot of information and small details, hope to be a fast learner.

From the comparison of John Becker following it on some of my Franklin #552, along a Us gauge, I did retain one who fit on Perf 11 which I put a picture below, and three with different perforations, also pictures below, in order:
nb12; perf 11--
nb11; top 11, side fit best 10.90--
nb5; top fit best 10.90, side 11--
nb1; top fit best 10.90, side 11--

Surely these values are not the exact ones, but it is visually obvious the differences on the Us gauge. What is the reason for that?

Thanks for all the comparisons. The variations are very, very, very small, and all should be considered Perf 11. Nothing out of the ordinary here for these 100 year old stamps.

Regarding terms, "... catalog number for this issue featuring a rate differing by half is the perf 11 x 10.5 Scott 632."
... the gentleman meant to type "... featuring a gauge [reading] differing by half ..."

Thanks Partime, so all to be considered as perf 11. I have another question, I read in the search area in the forum in many topics that a flat printing stamp do not extend, it shrink. I have a 552a (if correct) picture below who have 22.06V and 19.57H. what is the reason for that?

How did you measure?

i am using gimp

Booklets are a different beast.

Thanks Parcelpostguy. I did not really understand your reply. I measure yesterday a stamp 22.36V and 19.30H. Confusing to me, any reason?