Its main purpose is to mount 40-48 master maybe,but its suitable for pressing "sokke-laila" all the way down on the main shaft.... skål.
Still got this stupid thing laying around........would be cool to know something bout it. Only answer so far is Zodoff's sick fantasy...
Are there any threaded holes or anything on the back?? If not, hard to say what it is...if only through bolts, all it would do is space the MC back a bit. May just be a pece of some machine or tool that just happens to have the same hole spread as a Ford MC...