Hi the cups are Ag plated steel the shell is Ag plated Al. While they look pretty they are just contaminated Al. The grade of Al is nice if you remove all the steel parts. You are looking at something in the $1.50 # range in total metal value (thats Al # and Ag plating #). If you wanted to work them yourself you might come out ahead depending on the quantity and cost of chems. The problem is shipping to a place that will work for you. My partner and I had an opportunity for 40,000# a month of this material but with current Ag prices it just won't work. The GP Rf shielding on the board is in the 5-10 micro inch range. They look pretty not all that valuable. G3 cell tower material is flooding the market and has low plating thicknesses. Be careful of gold fever when looking at this material.
Eric
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