I need help to identify this one.
It's not a Kliegl 1143 or 3440 nor a Strand Patt 750 neither an altman 660.
It has a 1K mogul screw bulb , I think it could support a 2k
The front swing open in the middle to insert a round 16" gel frame.
I dismantled one to clean it and change the Asbestos wires and theres is not a single marking.
The wires where attached to the body with a plastic insert, it my help average the time frame.
This plastic knob my be the clue. I can't figure where I saw this kind of knob before.
Any clue will be welcomed.