[TowerTalk] Beam identification help Please

[Tom WA9WSJ]

Hello Gents,
I've gotten hold of a free, three element hf beam. 
Looks to be in good condition but I don't know for sure what brand or model.
The traps are 1 1/8" OD x 13 5/8" long.
It resembles a TA33 by it's driven element mounting scheme but no ID markings anywhere.
Does anyone know by the trap dimensions what this is?
I'd like to research the documentation for i,t to set it up correctly..
Thanks very much!
73 Tom wa9wsj