I hadn't wanted to post my CRH results because, well I thought I got skunked.
I went to my local bank and got a box of half dollars and a week later, a box of dimes.
On the box of dimes I got, they were wrapped in clear plastic, so I didn't have to unroll most of the rolls as I could see the glint of red on almost every edge. There were a few suspect coins which I dug out, but turned out they were just older or dirtier than the rest but not silver.
On the box of halves I got, I unwrapped everything and there was no silver visible - at least by edge.
There were tons of bi-centennial dated ones and there were also at least two dozen or more coins that had been marked with sharpie or magic marker, so that told me someone else had already searched a lot of what I was looking at. So I got discouraged and turned them all back in the following week.
THEN IT HIT ME LIKE A TON OF SILVER.
I don't know what dates were the 40%, what dates were the 90% and what else I might have missed...
I was only looking for the obvious silver color. I think I screwed up and turned back in at least a handful of coin with silver content. I thought only pre- 1964 would be silver worth keeping but I was only guessing at that.
If I remember right, (which obviously I seldom do) someone previously posted what dates were what silver content but I can't find that post anywhere. Can you CRHunters let me know what dates are keepers?