I've seen similar before, but am CRSing on what it it looks like.

It's not the same as any of the other four Superposeds I have on hand.

I've found several more Superposeds on line with triggers that look the same, so far, all have been FN guns, not Browning marked.

The gun (and all the other ones I've found online) appears to have the standard Superposed selector on the tang mounted safety.

[Linked Image from i.postimg.cc]

[Linked Image from i.postimg.cc]