I am hoping to replace my (likely very old) shower/bath handle without replumbing. The attached picture is the old handle that attaches to the plumbing with one bolt which comes through the center of the handle. The other two metal posts on the outside simply slide into mounting holes.

Any chance this can be found anywhere?

The old escutcheon plate has the name Wolverine model # 52190, and googling seems to point to Moen as being the ultimate manufacturer.

Thanks if anyone can help