well, if we assume the hardy hole is 7/8 inch, the anvil scales out to around a 13-inch long face a bit less than 4 inches wide. According to the hay-budden catalog that was posted here a while back, that would make this anvil around 100# ....if it is a 1-inch hardy, it would be around a 15-inch long face about 4-inches wide, which would make around 125-150#