A very nice jar indeed. It is a wax sealer and the missing tin lid & clamp is not a big deal at all, as these components can easily be added to the jar. Value in the current Red Book (#12) lists the amber quart & half gallons at $2,500.00 & up. A possible maker of the jar would be the LaBelle Glass Company, Bridgeport Ohio. This glass house was in operation from 1872-1888. Hard to be sure from your pics, but it very well could be an underfill instead of damage.