This is an early 20th century, about 1900 - 1930, round dining that is made in an early Jacobean or Renaissance Revival style. This was a popular decorator style in homes in that era. The bombastic or heavy/thick legs are more of a solomonic column than barley twist, which would be just a bit thinner. The estimate is based on actual recent past recorded auction sales of comparables. Retail 'asking prices' can be higher and vary.