I found this on e-bay , I believe it is a NRS gas tank...
I posted a link to the listing on the Early Ford Registry forum.
After checking the dimensions...….if the listed dimensions are correct it would not be a NRS tank....
Oh well, I'm sure the folks on the Early Ford forum will be quick to point that out as well.
Yes the black spots looked like the mounting tabs but in a close up they are riveted on the bottom and the side, so that is not the way an NRS tank would be. An NRS tank would have the tabs sticking out away from the tank. Good call for you have seen it and thought of an NRS tank though.
Herb you are right, as an update, the lister corrected the dimensions in the listing and told me it was out of a 1911 REO. The NRS tank is shorter in length....about 26"