I kinda think that the three in the center are Chevrolet and the two at the bottom may be Buick. The last one, at the 9 o'clock position, may be Chevrolet, also.
My two cents worth, perhaps overvalued. Bill
I have lights somewhat similar installed on my '27 roadster. I replaced the lower windshield post attachment bolt and use them for signal lights. On the back I have installed the RH tail light bracket that is available.
I realize that this is not "authentic " but it is era and I like the safety advantages of signal and 2 brake lights
I was collecting some era tail lamps to use for a turn indicator project on one of my cars. I, too, like safety. Bill
They will certainly be worth more than a few dollars on eBay.