I need help identifying these. I think they are either SN 20's or 11's. How do I tell the difference between them? Are these examples of different Types? Any help appreciated.
If you would post these in the US Classic Stamps forum, you will probably get more of the right people looking at these. Same with your other post.
But, for these, you will need scans. So wait to post until you have those. Scan one or two stamps at a time, and post, rather than a whole bunch at once.
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