Can anybody help me to value this antique bottle?

I have an inherited collection of bottles which I’m selling on eBay, and this one in particular seems like it could be valuable. The label on it said $600, however I don’t know if this price is outdated or inaccurate. Googling the bottle led me to several similar examples, but I can’t find the exact one that I have here.
It’s a clear ink bottle with an open pontil and embossed with “E. Waters, Troy, NY” (There’s a pretty nasty chip in the rim, but the rest of the bottle is in good shape). I’ll include a link to an imgur album with photographs: http://imgur.com/a/bDVHx
Also, are there any popular forums for bottle collectors that might be a better place to look next time I need to find a value?
Thank you for your help!