I’ve put a few sets of 11X17 diagrams on eBay:

Northrop F-23 predecessor and derivatives diagram booklet

Lockheed Archangel Diagram booklet (SR-71 predecessor designs)

McDonnell-Douglas/General Dynamics A-12 Avenger II Diagram Booklet

I don’t really know if these’ll do at all well on eBay, but what the heck. I’m hoping they might serve as a bit of advertising, though. The Archangel set is very likely a one-off, a result of the printer actually spitting out two copies rather than one.

For those of you who were generous a good long while ago and have been wondering “what the hell?!?!” the technology and techniques I’ve been developing and requiring recently will prove relevant.