I would start an auction at face 1.0 for each with minimum bid increments of .001 or even .0001.
You wont get much more than face, maybe $50-100 worth in BTC. You could create a lot with both coins if you want to ensure it goes to same person. Escrow is highly recommended, and your best choice is Minerjones. Essentially the buyer would send funds to MJ. You send coins to the buyer (or to MJ). The funds are released to you when either the buyer or MJ has the coins.
Good luck with sale! As far as oxidation goes, I think these coins still look nice and interesting...
Remember that face value of the coins includes all the forks along the way
