labeled

in my previous post I asked about some XE small block parts. I am trying to help an estate ID and value some items. the next piece is not a gt-40 but it is a mid engine small block ford powered racecar. tube chasis, 4spd top loader trans axle fiberglass body labeled Sutter. right now i need some...

My fuel sender has two terminals labeled M&T - which one is for ground? Never seen a fuel sender labeled as such, thanks -Steve