Thanks for all the info. I cornered the former owner for more information. The saddle is approximately 30 years old. The former owner had it for 25 of those, using it for less than 3 then putting it away to get moldy and dirty. She bought it from the original owner in Texas. He was a roper who ran the stable she boarded her horse at. She has recently returned to riding and bought a nylon saddle as they could barely lift this one. The 19" measurement is from the inside of the horn to the inside of the cantle. Other riders who saw it have commented THAT'S FREAKING HUGE! I am a big man, 5'11" and 280, it is roomy for me. Originally, I thought it had been put through the paces, but upon inspection,the saddle was constructed rough out. There is a stamp on both fenders, but since it is done on the rough and is old it is real hard to read. The tree is real solid.