So ever since I encountered that document with two R36b imperf vertical singles last November at CHICAGOPEX, I've been paying closer attention to part perfs imperf vertically vs. the typical imperf horizontal orientation.
I've been aggregating images from my collection, auction catalogs, dealer websites,
ebay, The Curtis Census, PSE and APEX archives, etc., to try and get a better overall sense of which ones are legitimate and which ones are more scarce than others.
I've put together a page on my site displaying the images:
https://revenue-collector.com/partperfsIt's a work in progress; I was planning to wait until the PF's certificate archive was back online, but since no one knows when that might be, I decided to forge ahead.
If you have or see any examples of imperf-vertical part perfs not shown there to add to the data, especially multiples, please contact me.
Posted 04/25/2020 10:55 am
