There is zero chance that it is gold, it shows signs of old corrosion from being buried but gold does not corrode. Due to the odd shape, I seriously doubt if it is numismatic-related at all but I really have no clue otherwise. Best guess is that it is a bronze/brass base of something, there is a hole along with a brighter circular area on the smooth side- an indicator that something else was attached to it. The bottom has some interesting markings that may be maker's marks. It might be the base of an old candle holder but that is just a guess.























