Vintage DB David Bradley Sears Traffic Barricade Flasher Warning Light Red/Amber

Description

"Dual transistorized hermetically sealed"
Light can be rotated
Model 346.58400 Serial 11093
4" dia lens one red, one yellow
6" x 7" x 3" metal box
12" overall height
Still has instructions on inside panel
Still has most of its paint, no rust, with a spot of corrosion inside possibly from battery leakage.
This is a collector item not a working light. It has not been tested and it is assumed that it does not work.
Made by David Bradley Co for Sears, Roebuck and Co
I have several other brands that I will be posting. Parmak, Econoflasher, Toledo. I'm trying to identify some that have no name on them. If you could help identify these or have other information that you would share, please contact me.
Thanks