alfredgeorge
Greenie
We found these on the Lake Ontario shore line where at one time there was a kodak water treatment facility . From my understanding silver as well as platinum was used in making film . we put the pieces in hydrogen peroxide were almost all of them had produced a bubbling reaction. we ordered a test kit but if any one could tell me there thoughts all of these have a weight a little over 3oz This is what I have found over a 2 year period