Batman Unpainted & Unassembled Resin Bust Garage Kit

I found this in my storage and I'm calling it a one off. I see no others for sale on here exactly like this one.
There are a lot of 3-D printed items out there,but this is not one of them.
It is an unpainted and unassembled bust kit made of resin featuring the one and only Batman.
This was created in a mold,not a printer,based on the original hand sculpted statue(I'm assuming).
I've had it for years,so I know it isn't a 3-D printed item,but have no idea where I got it from. You tell me,and then we'll both know.
Hand sculpted items are not perfect,like a computer created one.
Those ears are not perfectly symmetrical.
I forgot to include a ruler in my pictures,but the base is 2.5 inches in height and the bust adds approx. 6 inches more,but that is to the tip of those very long ears.
I have already bubble wrapped it and packed it in a box to ship.
It appears to be inspired by the Keaton era Batman franchise,but it is its own thing with those long pointy ears.