Seems like anything pontiled will bring a bit of money on ebay. Is that actually a pontil scar on the bottle on the right?
I've seen a lot of non-pontiled black glass ales/wines in the $5-10 range, but I've never come across pontiled bottles in that price range. Maybe they're more plentiful elsewhere, or I haven't been looking long enough.
Just a thought cookie, I always list these in the civil war era original period items category as well, re-enactors will pay double to triple or more what an ordinary bottle collector would pay on these type items.
Ebay is OK but try out Gunbroker for the re-enactors....[]