Its a Crouse Hinds Type DT. DT had those stamped reflector frames. Type D had cast frames. Definitely needs some work in the refurbishing department and new wiring
It sold for $20.99. I could have bid $21 and got it for just a penny more, but I have several 8-8-8 Econolite with new and old style groove backs and really havent done much with them.