Help -- Is This An Unused Scott#544

Hello to everyone! I joined a couple of months ago before I read the rules and understand them now! While sorting and organizing my Mom's collection , I've logged in and read some many post. Thank you for being a great source of information. Here is my first contribution in the form of a question! After the collection is put in order and inventoried, I plan to seek out an expert to evaluate some specific stamps that seem valuable. This Scott #544PERF 11 has certainly gotten my attention above all that are in my Mom's book. I am not sure if I should leap for joy yet but these 2 stamps seem promising and make me smile every time I check them out. I hope you can help me decide if they are genuine and actually Scott #544s! Mom placed them in the book so please let me know if you think I have the REAL MCCOYS!

FIRST...you should take a picture out of the mounts.
You will have to be able to tell a flat plate issue from a rotary issue.
Looks to be flat plate.....#498

Have you measured the stamp's image frame edge to frame edge?

the right stamp is certainly rotary perf 10x10.
the left stamp seems to be flat plate 10x10

if you compare the design sizes, the right stamp should be taller

they don't look perf 11 to me, but scans can be misleading

chasa, I assumed Audrey850 had already confirmed with a gauge the perfs. You're right though they do look kinda large.

Audrey850, have you actually measured the perfs to verify they are 11?

They are both perf. 10x10

U.S. Scott 424 or 462 and 543

I believe she is counting the perfs to come up with 11 and that's not how they are identified.

This should help:

http://www.kenmorestamp.com/perforation-gauge-cms

I think the others are right, it isn't perf 11. But to answer your original question, here is some info on the #544.

US Scott #544 is one of the stamps made from coil waste paper. They are more scarce than other Washington/Franklins. This stamp would be quite rare.

If it is #544, it will have the following characteristics...

Perf 11 all sides
Dark gray green color
Vignette will have the dimensions 19x22.5 mm.

This stamp is very often faked, so there's that issue.


-IBFS

It is not accurate to say the SC#544 was made from coil waste paper. It was made from sheet waste paper - there is a difference. ref: http://siegelauctions.com/enc/pdf/1923Rotary.pdf

My error. Sorry. Thanks for the correction! It was made from rotary press sheet waste.


-IBFS

Please kindly help to identify. Thank you!

Perf. 11 1/2 (both sides)

Scott #405--Perf. is 12x12 size is 19x22mm

Thank you very much!
Could you please (or someone else) kindly look at these two?

Both are #498

Thank you very much!
Definitely, I will post more pictures...I have hundreds of them! ))
Thank you.