Quote Originally Posted by Nodda Duma View Post
If you include dry plate, mention could be made of astrophotography plates exposed in observatories such as Palomar or Keck, which I believe are part of the collection described in this article:


The prime focus plates would be at least a couple feet in width, if not more. I assume the collection includes similarly large 19th c. wet plates, but I don't know specific dimensions.

The collection is still scientifically important for astrometry.
This is another fantasic link. A good match to the Down Under one.

I wish I had gone to 2017 Expo Chicago. Lin Halloran is a treasure.