Series radial wave street light from Camp Parks, CA. (Was originally mounted onto a single guy channel-steel bracket arm.) Later used for dusk to dawn area lighting. Was struck and the porcelain was damaged where it fit into the crown piece by a hay squeeze so it was repaired and retired to "indoor" service in the collection.
Hey Rish...look at the file information it says "High voltage incandescent. (110 v. lamp used for indoor display.)"
And Willis...are you sure it's called a "TRUSS ARM"? A truss arm looks like this picture here ....perhaps you mean straight mast double guy or forked mount double guy....I have honestly never heard of a double guy truss arm..nor seen one..
I must have been tired when I wrote that one. It originally came on a single guy truss. (We used to also call them ladder trusses.) I tried to plink a photo of the arm but this form didn't like external links. It's the arm that the Joslyn was hanging from outdoors with the reflector minus the refractor.
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And Willis...are you sure it's called a "TRUSS ARM"? A truss arm looks like this picture here ....perhaps you mean straight mast double guy or forked mount double guy....I have honestly never heard of a double guy truss arm..nor seen one..