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Help needed: 1st-3rd issue revenue double impression census

Help needed: 1st-3rd issue revenue double impression census

I’m working on a census of 1st-3rd issue revenue double impressions for my website, similar to the bisect census page that I’ve already published. Initial work can be found here:

Double Impressions Census

If anyone has any of the following information, I would greatly appreciate it:

  1. Any examples not shown or listed.
  2. High resolution images of the actual stamps where I only show low-res images that I obtained from auction catalogs or the PF archive.
  3. Public auction appearances that I don’t have listed.
  4. While you’re here, please take a look at my bisect census page. I could use some help in fleshing that one out as well.

Thanks in advance.


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