1922 Theodore Roosvelt

As I have already mentioned before, I have returned to my old stamp collection, as I started it in the 80s and at that time I did not have the internet or a catalogue, I simply kept all the stamps that fell into my hands. Now with the web, I can even see the year!! I am finding many surprises with very old stamps....I wanted to show you this one from 1922, which I have seen, there are five serval models, so I have not been able to fully identify it, any idea which one of them it could be?

This will gives you more info on your stamp. As noted, there are several different varieties with the same design but the link will show you the differences.
https://stampsmarter.org/1847usa/19...ntifier.html
Don

Really grateful!!Thank you for this information!!The Internet is undoubtedly a great tool to enjoy stamp collecting, I should have taken up my collection sooner!!

You might want to measure the perforation gauge, especially that of the vertical sides.

I have been counting the perforations and measuring the total size, I have 10 perforations at the top and bottom and the size is 22x19, I think it could be the 557c model....but I'm not sure.

Oh my goodness..this stamp...if it's 557c, it's terribly valuable. Will it be true? 557c?

You should not be counting perforations when identifying stamps - you should be aligning them with a perforation gauge.

As GeofHa wrote: you should not count the perforations but measure the perforation gauge.

I have a feeling you will end up with a #637.

I don't have one...I'll have to get one.

Until you purchase one, you can start with a free printable one here
https://stampsmarter.org/learning/F...rfGauge.html
Don

Great tool! My home printer is broken and I won't be able to check it today...but I hope to be able to do it tomorrow. I will share the result. I'm really grateful!

It looks as you have misunderstood Scott's description of 557c. The stamp shall have perf 10 on top OR bottom, not both, and perf 11 on all the three other sides. As your stamp has the same perforation on top and bottom it cannot be a 557c

I checked the size with the meter, 10 above and 10 below...But I have to print it on a transparent sheet to be able to do it correctly.

No.

I do not know how you are using your perforation gauge, but you should find the *rate* to be 11 at both the top and bottom.

It's complicated like this...I need a transparent paper...

Your gauge is printed about 10% too small.
Your stamp *IS* perf 11 at top and bottom.