Can Someone Help Please Verify If These Are All 552's ?

Good Day to everyone. I have been practicing with perf. gauge with the bundle of George and Franklin 1 stamps earlier today. With these (4) used George 1 stamps, I have noticed that all of them have a perf. 11. Are these 4 stamps considered Scott 552's or something else? The color of one of them looks dark green, while (3)lools different shades of green. We all know that the 594/596 difficult to find, but pref. 11 on all sides, so I said others might be able to help double check. Thank you for your assistance in advance.
(It was very tempting to piece those holes with 2 of the stamp with a pin, but have not touch them. smiles)

I wonder if the lighter green stamps are 632. (Good luck measuring those perfs!)

the 632's are 11x10 1/2. I measured all sides as being 11 for all 4 stamps...please if anyone can double check would appreciate it.
KGB I know you want to piece those holes like me..hahahaha. Thanks for responding!

The color and aspect ratio of the first stamp looks like a #552. The rest look like #632. The vertical perfs of the others should match each other and be different than any of the edges of the #552. The horizontal perfs of the others should be close to matching any of the edges of the #552.

Physically lay them next to each other trying to line up the holes or you can do it an a photoshop like program with your scans.

You will also find that the #632 are significantly taller than the #552. You can take your least favorite one and cut off the corners diagonally to turn it into a template. You now have tool to help you identify rotary printings easily while you learn to spot them by appearance.

The perf hole discs (called chaff iirc) can be removed to improve a stamp's appearance. Just take your time and be careful.

All good info from DNA!

EDIT: I couldn't measure half a perf if my life depended on it!

Thank you Historical..appreciate your suggestion. Will try this. smiles

blazenstar,

I remove chaff by holding the point of a sharp pair of tweezers to the chaff and then carefully move the stamp away from it. It is not difficult although sometimes you may be removing something that shouldn't be moved. In other words, be careful and don't force anything!

Jack Kelley

the thing to find is some 11x10

Thank you, Jack and Jim for your suggestions..smiles..I did find some unused ones in the bunch..I have several used pairs still to exam..Will be checking over those as well..
Thank you all again for your wonderful advice!
Blazenstar

I manipulated the second stamp image to show the bottom perfs adjacent to the right perfs... Definitely a 632.

Thank you. Bill..I noticed that most of them in the bundle are 632s. I have several 1908- 10 Washington 1 cents too, mint and used coils was mixed in the bundle. Thank you for showing the pic, it was very helpful along with others with their suggestions!
Have a great day!
Blazenstar

Once you have one that's 11x10½ you can use the bottom perfs on it to check all the others. Just line them up and see if the perfs match. Finding an occasional 11x10 will be evident that the perforations are farther apart.