Would anyone guess the weight of the anvil minus its base on ebay #140107954031 I don`t remember seeing one with measurements this lage before, thank you.

I did a down and dirty guesstimate based on his measurements (not his quoted "weight") and believe it will go right around 600. I did a quick volume of the horn, waist and base in cubic inches and converted to the weight of steel. Did not take anything out for a hollow base, holes or anything else so it might be as low as 550.

Looks like a Trenton but hard to tell without close examination and in pretty good shape.