1920's and 30's color photos

 Experimental planes on Wright Field in Dayton Ohio

 these last two are photos from the 1927 Fair of the Iron Horse, the was staged by the Baltimore & Ohio Railroad to celebrate its centenary.

photos from http://www.howtobearetronaut.com/2011/05/america-1920s-30s-in-color/

2 samples of cigarette cards of the predesessor to the stage coach, and the passenger train

See a whole gallery of similar cig cards of early 1800's trains at http://digitalgallery.nypl.org/nypldigital/dgkeysearchresult.cfm?num=140&word=Railroads&s=3&notword=&d=&c=&f=2&k=0&lWord=&lField=&sScope=&sLevel=&sLabel=&imgs=20&pNum=

this is a stagecoach museum in San Diego's Old Town, (now a state park / tourist attraction) it was the original settlement in San Diego

Tere did a much better job of posting a thorough gallery of this museums wagons and stagecoaches, see it here http://justacargal-s.blogspot.com/2011/05/seeley-stable-museum-in-old-town.html

Look at these leather straps that make the suspension

This is amazing, 30, 40 pounds of leather straps holding the cab over the chassis

I bet nothing in Racine remains of this Mitchell Lewis & Co

The above and below are Studebakers, the only company I've heard of to transition from carriages to automobiles