Hammer Dry Photographic Plates

I helped a fella clean out his garage in exchange for some of the junk he was getting light of. I got a dozen boxes of Hammer and early Kodak glass plates.
I got an old ice chest, cut the bottom out, laid a piece of white paper down.
Turned ice cooler upside down on white paper and put a 10x14" piece of glass over the cut out and dangled LED light just under glass.
Put glass negative on top and take steady photo with this Smart igit phone. Takes a moment to adjust light and angle....
Put picture on special effects on Smart igit phone and touched " NEGATIVES" and it reverses the negative to a photograph. Walla!
And I have fun