3c Dark Violet, Ty. II, Perf 10 At Bottom Or Top ؟؟

3c Dark Violet, Ty. II, Perf 10 at Bottom or top

Look Perf 11 to me? The bottom stamp you added after your original post looks to be perf 10. Here is a good site to learn about these.


http://www.stampsmarter.com/

The third stamp is a rare stamp from siegelauctions

What does your perforation gauge say about these stamps?

Peter

Both look perf 11 on top and bottom

Honestly, I am so happy when people ask questions about their stamps here - each day it makes an additional reason to double check/review my own stamps. So, thank you! )))
StampSmarter website is great
As a novice collector and especially, reviewing dozens of the same kind of stamps at once, I find useful:
http://dubinweb.com/USpostagestamps...eecents.html
All on one page:

just to compare -the stamp with perf.10 on all sides:

First, just from looking at the images, the perfs are the same, top, bottom and right, on the first two stamps you posted. If you aren't comfortable with your ability to detect just by looking, and you don't have a perf gauge, you can still answer your own "question".

Its a fairly easy matter to determine the perfs are the same all around using your images. That is, if you are going to take the time to post an image, it takes another minute or two to use a simple image editing program such as Paint on Windows to compare the side perfs with the top and bottom.

But please continue to ask questions. I am not criticizing, but just offering some advice for answering you own question.

For example, for your top stamp:

The Caldwell NJ precancel is listed at the PF Certificate website as genuine.