South Bend 10L x 4 1/2' , serial number 18392 RKX. 2 1/4 x 8 TPI threaded spindle,
Reliance 1 1/2 hp 3 phase two speed motor. Flame Hardened Ways. DDB200RG
stamped on bed.It came with a Cushman 4206B 4 jaw chuck and a Williams OS tool holder.
I purchased the lathe at auction from Whiteriver School District, Whiteriver, Arizona.
They had 4 or 5 0f the same model.The dealer tag shows Copper State Machinery Co. 
Phoenix. Thanks