Looks a lot like a low wing Ford Tri Motor.
Old airplanes are a hoot.
Years ago, wife and I flew from Huatulco to Oaxaca in a spotless DC-3 operated by “Air Liberdad.” The airplane flew along at about 90 mph, between the southern Mexican mountains.
We were the only Gringos on board.
There is a link - from wiki -
The Ford Trimotor was a development of previous designs by William Bushnell Stout, using structural principles copied from the work of Professor Hugo Junkers, the noted German all-metal aircraft design pioneer, and adapted to an airframe very similar to the single engine Fokker F.VII - even using the same airfoil cross section at the wing root.
But the Ford Tri-Motor flew 4 years before the Ju 52.
The link is the evolution of stressed skins for aircraft construction that replace the woo/steel frames and canvas techniques of the time.