I purchased GM PD4104-765 in 1995.
It had two previous conversions that I know about; one by Don Redon and the other by Richard L. Burton. Don purchased the bus in Lincoln, Nebraska. I purchased the bus from Don in Fresno, CA.
I have completely gutted it and have reconverted it. I have also repowered it with a mechanical 8V71TA / V730 combo, larger brake drums, Sheppard steering and much more.
RJ Long supplied the following info; Originally sold to Central Greyhound Lines of New York; hdq. in Cleveland, Ohio in Dec. 1953. Their fleet number C-1067.
It is CA DMV registered as a 1954 year model.
It's current home is in Central California.
Craig Craddock