could a fab  something like that up to change my automatic trans?

Do the arms all drop straight down? You may not be able to read a number on the chrome handle without disassembling the shifter. It is early aftermarket not a factory installed piece.

 Cool piece. Do you have the rods. I could tell you from the numbers on the rods what it was mounted on.

 It looks like B or A body, no console.

 I can check the numbers when I get home if you want.

It looks like a variable fit shifter. The rods and mounting bracket would narrow if down some.

Hurst offered this shifter with the curved handle not offset with 3 different lengths of handles. 9", 12", 18". Factory type installations would put the 9" in Corvette, the 12" for FS car, Chevelle and Chevy 2 with or without console and 18" in pickup truck.

 The push in factory shifter appeared in 66. It looks like the bolt on handle appeared around this time too. Maybe as late as 67.

Hope this helps

Not to hijack this thread but here are a couple pictures of some of the vintage Hurst stuff I have in the house (more in the shop).