A St. Louis Iron Works Catalog from 1916 with a 21/2 on trucks and battery box

 

2 ½ HP HOPPER COOLED TYPE A

(4 ½ “  BORE X 6 “ STROKE, 22” FLYWHEELS STRAIGHT TRIP

150333       video

150566

151024

151051

xxxxx                  TAGGED GRAY ALDRICH

151228

151328

151723               IN U.K.                 

151996              

152180            

152189

152236              video

152279

152551               G.D.THORNDIKE MACH 3 HP

152788               

152983

153393

153500

153583             video            

153587

153602

153606            video

153564

153912                TAG IS 2 ½ LOOKS LIKE A 3 1/2   4.25 “ BORE          

154001                 TAG IS 2 ½ LOOKS LIKE A 3 1/2

154132                 LARGER BORE