UP FOR AUCTION IS THIS SET OF 3 AUBURN RUBBER TOY FARM TRACTORS MADE CIRCA 1940.  CONDITION IS EXCELLENT AS PICTURED WITH ALL HITCHES INTACT.  IN O'BRIENS COLLECTING AMERICAN TOY SOLDIERS (EDITION 3) YOU WILL FIND AN EXAMPLE OFTHEM ON PAGE # 192.  ADD TO YOUR COLLECTION AND THANKS FOR LOOKING!