First post in this area, I've been lurking and have some questions.

I was wondering who really knows a lot about glass plate negs here on APUG?
Here is why, I have a Rochester Optical / Kodak imperial plate camera that in the 1970s and again in the early 80s I poured some emulsion on the scraped off glass left behind in the holders and took a few frames.

So when did glass plates go out of production? Is there a following of dry plate shooters out there who long for supplies? I know you can buy liquid light and pour your own negs, but might there be a market for pre made dry plates.

I ask this because my wife owns a glass company and I own a dry plate camera. 1+1= 3 (right?)