Need Help In Identifying Scott#544?

Recently I got hold of a George Washington stamp pairing of 2 Cents green attached an envelope mailed from Illinois dated May 24, 1919.What attracted my curiosity was, I saw an article about a series of George Washington cents green for the series of 1919-21 that rewards sale price handsomely for the extremely rare Scott #544. Since the title stated that it was for the year issued 1919-21, I did some research using whatever tools that is available with me(even though it might be inaccurate )...
Here are the results :








So, did I get the "REAL DEAL"?
Is there a possibility of discovering an earlier documented Scott #544, other than what theswedishtiger recorded ?..
Thanking in advance for any feedback given , all are appreciated and welcome, tq.

You refer to the Swedish Tiger. That gives an issue date 17-12-2022. It also states it was an experimental issue.

How big a probability would there be that, after more than 100 years, you discover the experiment took place 3 years and 9 7 months earlier?

Edit: What is the perforation gauge? Could it be 12?

Its 11 perf...l don't have that gauge scale thing(must get & #595;uy one of those ).

how do you know it is perf 11 if you do not have a gauge ?


Peter

With a little bit of experience it is fairy easy to differentiate between perf 10, 11, and 12 Washington/Franklns - without a gauge.
The stamp is clearly perf 11. Scott 498. Period.

Thamks John, but I wanted to know from the OP how he got there


Peter

[:D
Yep!..its laughable...i count the punching holes, LOL!..
All done here, it is what it is!...with a pinch salt, #498 it is then, period...done, dusted!
Thank you very much guys for the help ! You all are the best!

P.s What was I thinking, Must Get Those Perforation Gauge!

Yes, counting only works when the stamp is 20 mm. wide and / or high. Otherwise, it is time to get the calculator and the probability of an error will be large.

Not quite. This stamp is more than 20mm high, thus one can easily do a direct count of the perforations within any 20mm span with a common ruler. Similarly, one can double the count within a 10mm span along the top. And there are other in-the-field-I-left-my-gauge-at-home "tricks" which I will not go into here.

That said, I do NOT recommend beginners "counting" perforation or other similar methods until they master the concept of a RATE with a proper perforation gauge, which is one of the most basic tools of any collector.

For size comparisons, compare against a U.S. Scott 543 stamp.