This is a 1905 “Royal” model toilet bowl made by the John Douglas Company. To be properly installed, this bowl HAS to set on a 14″ rough-in that’s attached to a 4″ waste line. This bowl will not work on modern rough-ins! The outlet of the toilet tank has to be 4 1/2″ on center, and that will allow a straight tube to connect the two. Condition is excellent, and bowl will extend into room 27 1/2″ and stand 15 3/4″ tall. Will accept modern round front toilet seats.