1933 Rohr, rare German luxury show car

Rohr was technically far ahead of its time, when it first appeared with a car of its own make, in 1928.  It had independent suspension on all four wheels, was based on a platform frame, instead of the ususal square or i-beam frame. Good engineering, but bad business made the company go under in 1937

The Rohr automobile is extremely rare. Even back in the 1970s, less than a half-dozen of them had been rescued by collectors or museums. Obviously, these, like many fine European cars, were annihilated in the ravages of World War II — lost in bombings, fires or scrapped for the value of their steel.

The manufacturer built this one-of-a-kind classic for a 1933 German automobile show: a radically streamlined fastback four-door pillarless hardtop (22 years before this style was revived in the U.S.). Its sloping grille was different from the production line. It had been preserved by an admiring owner, and was purchased years ago by Edgar E. Rohr
info from http://www.spokesmanreview.com/auto/auto.asp?sid=1132
photos from http://www.flickr.com/photos/57343654@N03/sets/?&page=3

1920 Dayton-Wright RB-1

Dayton-Wright RB-1 was built in 1920, a racing aircraft developed in the United States to participate in the 1920 Gordon Bennett Cup air race. The aircraft was a high-wing monoplane with retractable landing gear undercarriage operated by a hand-crank making it one of the first instances of undercarriage retraction for aerodynamic benefit alone, clearly ahead of his time. With a monocoque fuselage and cantilever wing (built of solid balsa wood covered in plywood and linen) that incorporated a mechanism to vary its camber in flight. Unfortunately he was unable to fully participate in the race, getting off the highway due to technical problems. After that the aircraft was taken to the Henry Ford Museum.
from http://dieselpunk.livejournal.com/
The pilot had no forward visibility, but was provided with side windows. Cockpit access was through a hatch in the top of the fuselage.

Dismantled and shipped to France, the RB-1 was flown by Howard Rinehart in the September 28 race, but was forced to withdraw from the competition due to mechanical failure in flight. It was returned to the United States, where it is preserved at the Henry Ford Museum in Dearborn, Michigan. http://en.wikipedia.org/wiki/Dayton-Wright_Racer

Draper the tire salemans Dodge, with Trublpruf solid rubber cross drilled tires, never will go flat

Below photo is from the front window display of his business http://justacarguy.blogspot.com/2009/01/trublpruf-tires-by-lambert.html

http://www.shorpy.com/node/9969
Tires were flat so often, that this solution was considered a great idea, and cars didn't driver very fast, since roads were in such terrible condition, and there were very few miles of paved road in the entire country of the US

I finally stumbled across some new photos of the 1937 REO fuel tanker

found on http://www.cardesign.ru/forum/diskussii/obschenie/1352

the only other image I ever came across was in 2009: http://justacarguy.blogspot.com/2009/02/there-may-never-be-day-in-future-when.html and since all 3 images show the REO with the same side marking advertising Super Plume Ethyl, I suppose it's the only one vehicle in these 3 photos

Dymaxion by Buckminster Fuller. One unique design

Found on http://mauriciomorais.blogspot.com