Most of my friends know that 1 lust after historical artifacts relating to minerals and mining, and many collectors have generously shared their own similar interests with me over the years. Recently, Colorado cattle rancher Mike Potter sent me a surprise package, part of a "show and tell" process that the two of us have vicariously enjoyed for some time. Mike's package contained a genuinely exciting artifact that neither he nor I had seen before, so a bit of research was in order!
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