Wow - what a spectacular find tjkwood!
It looks 30's to me, maybe even earlier with that seat lug.
The lauterwaseer bars are right for a GA but I'm not sure about the black.
Does the chain ring bolt-on to the crank arm (as shown below?)
Also - Does it have the "quick release" ears for the fender-mounting wing-nuts located part-way up the seat stays? From what I was told this is an essential feature of the Golden Arrows. It allowed the rider to quickly remove them for competition (and use it to run his errands the rest of the time).
