Most importantly to note any damage or flaws not originally made in the making. Since you found under a house, it is likely in pristine condition and the "scratches" you see are likely stretch marks common on pontil era bottles. Your pics give the impression it has been pro cleaned, so I would mention where it was found and not tumbled. Some collectors shy away from this type of cleaning. Be sure to include the base with a CLEAR pic of the pontil as this is important, though I didn't find a smooth base example listed. The base "ding" some see in the pics looks to me like possibly a potstone, or a piece of crud or possibly a bubble. Bubbles are fine unless one side has opened but still considered minor at worst. If a bruise, it usually will have a rainbow color in the right light & angle and this will affect value to some degree. If it is a poststone or crud in the glass, look closely for any radiations or "spider legs" trailing away from it. These can expand and develop cracks which is not good. Neither are spider legs but are more acceptable than cracks but need to be mentioned for accuracy or you will be shipping it back & forth with refunds, etc. Believe me, been there, done that. Pain in the arse. Jack PS- Lastly, make sure the dirt is as removed as possible from the base as this seems to be the most offending area and could be a matter of removing some more dirt in the bottom. Might save you a few hundred bucks! If in doubt on damage, don't overstate what you aren't sure of. Take to a trusted antique dealer for their opinion. I have bought more than my fair share of bottles on the cheap because of damage noted that turned out to be dirt or in the making flaws! JackAlexm1087 said:Ok so if I decide to list it on eBay. What should I start out with as a bid. And what key details should be listed?