Aut cum scuto aut in scuto
Does that vert. stab say Lockheed? And what's with the wings upper surfaces?
It appears to be Charles & Ann Morrow Lindbergh's Lockheed floatplane that they named Tingmissartoq - "one who flies like a big bird" . . . : https://pioneersofflight.si.edu/content/lockheed-model-8-sirius-tingmissartoq-1The upper wings show what's called oil-canning, from the effects of pressure, temperature, &c. on thin metal surfaces.
The fuselage has some of the lines of an F4U Corsair. Looks like large radial engine with gas tank behind it. Beautiful thing, as was the Corasir.
in the model 8 "sirius",the fuel tanks were designed over the center of gravity and also forward of the pilot compartment to mitigate fuel fed fire engulfing the crew after a crash. also, if memory serves, the floats had fuel tanks installed in them for extending the overwater range. good article on wiki.