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What's your guess? Light fixture? Tight skirts? MCM my guess. I see dates on similar forms and paperwork dates 1927-1934. Tight skirts, like your form, came out in 1940s-1960s.
Maybe you need to give Google more info to work on because seems you often come up with nothing but others can find. On this one, what did you type in? I typed in "The Better Model Dress Form Co. Brooklyn NY.
Came up with this page: https://troutunderground.com/Dress-Forms-Brooklyn-Ny/
Which shows one just like yours and links to this one: https://www.ebay.com/itm/324358267976
That price seems high, though some in better condition are selling for $400. Some are selling for $64.
All the links you have provided are my listings.
I was reading through the Whadya find items today and noticed you had several posts where you said you had googled and come up empty. I have found that I type it ALL into google, everything I know -- or sometimes I just ask it an entire question...
"What year did Company Bozo make their clothing labeled Bozo Man" -- it seems like many people who have told me they have trouble with Google had this issue and seemed to do better once I told them the above. Might not be something you can use but I thought it might help. Hope you get your $600!