Computer keyboards?

whole keyboards with cords attached for .02 /lb

I weighed up an average keyboard with cord and it was 2lb, so your paying 4c for it?
I cut the cord off and weighed it, it's worth 12c alone.

anyways I took some pix to show you the older one, the pattern is printed into the board..



this is the back..



here's what I believe was the next stage going onto mylar, the bottom one, it's mylar..





and today's mylars, some have very intense silver patterns, other's are merely traces and dots..









so in high volume mylar stacking, you can see how you would have like a division in between your stack.
the low grade patterns and the high grade ones.
if your selling by qty or weight then your option is to sell the low grades and keep the highs or turn them in
to a refiner that returns the silver in a blob instead of cash, that way your maximising your return.

same with buying them, if you can buy the bulk lots up, like 20's, 50's or 100 of 'em in one go then you could also
seperate the highs & lows and resell the lows and build up a good stack of silver that way.

Here's a perfect example, this one is still joined together so obviously the pair of mylar from one keyboard.
look at the difference, I know which ones i'd pick out of a bunch, do you?