This is a Vintage Auto Meter Sport Comp mechanical fuel gauge model # 3411.
It has a measured range of 2-15 psi. It is 2 5/8\" across for the mountings opening size.
It has a 90 deg brass hose fitting attached to the original straight outlet.
I removed the fuel inlet cover I had put on to take photos. It was always covered, to protect from dust or who knows what, since the time it was last installed in the late 90\'s. It was stored in a plastic bag and tucked away. It has been re-covered and put in a new bag.
There is some bezel ring deformation from ? Not my doing!
Thanks for Looking....