US Scott #10 And #10A

That's great!

k

Yes. I probably should have shown the #11 vs. #11A comparison to begin with, since they are both more common.

k

The new numbers starting with the 2008 US Specialized were 10A, 11A, and 25A. Each one of these was the Type II variety of the sans-A catalog number.

In the same catalog, the old 26a was changed to the major catalog number 26A; it is not really a new listing. #26 is Type III, while #26A is Type IV.

It all sounds complicated until you sort it out. Frame line vs. no frame line on the 10's and 11's. The 26 types are totally different.

I always found the 26 types a little more challenging. It depends on where the perf holes hit as to whether you can see if the vertical frame lines are continuous or not, as well as on the centering.

I received the 10A I bought and it had no certificate. I guess I mis-read the listing, although I had communicated directly with the seller. Now I am going to have to return it and get one with certificate. I must admit that the stamp I now have in hand certainly looks like 10 in color. But I do want an expert's opinion on the subject.

Thanks Kim that's great information and yes I can see the difference with my #10 but just to make sure I brought a #10A at auction,now all I have to do is make sure I haven't got 2 #11A's .