i personally think selling 1 or 2 is a complete waste of time. Your package wouldnt even weigh anything. Why not sell them in batches of 10 or so, and that way shipping is dissipated and you arent charging $5 for something worth $2
they come in a plastic sleeve. Silver itself doesnt really oxidize unless you play with it alot, which is evident in circulated silver coinage. The ones I ship are Mint State, and I have only touched their rim.