Is This US Stamp #498g?

I researched everywhere but I couldn't find a matching stamp so I want to ask people. The top and side's perfs are 10 and the bottom is 11. It doesn't look like there are any fixes. Unwatermarked. I would greatly appreciate it if someone let me know about this stamp!



*** Moved by Staff to a more appropriate forum. ***

498g has only one side, top or bottom, with a perforation rate of 10 so you can rule that one out. Your stamp is the other way around if your perforation measurements are correct. Do you have a perforation gauge?

I know that as well. I couldn't find this stamp anywhere. Yes, I have a perforation gauge.

Hi-resolutions scans would be far more helpful.

Short answer: No.

Longer answer: Scott 498g is perf 11 on 3 sides and perf 10 on either the top or bottom. Yours is clearly perf 10 on 3 sides, etc., a reverse combination. Additionally, none of the perf 10 listings have a variety with a top/bottom as 11, thus noting the very tight top bottom margins, I lean strongly toward your stamp starting life as a perf 10 stamp with a natural straight edge at bottom and a faker tried to "improve" it by adding perforations, but errantly added perf 11's along the bottom edge instead. I also note the bottom perfs are all extremely close to the same length, which is inconsistent with the other three sides.

I agree, this stamp almost certainly has been played with.