This is a 1922 Pacific brand toilet bowl, and it HAS to mount on a 14″ rough-in and have a 4″ waste line. This bowl will not mount to a modern 12″ rough in. It can be used in both low tank and hightank applications, if working with a hightank, choose either the 2×1 1/2″ spud or the 2 x 1 1/4″ spud. As for condition, this bowl does have lots of factory “blackspots” and one grain of sand sized factory “pit” in the rim. It’s visible as a spot at the right rear of the bowl.