Aultman Taylor of Mansfield, Ohio, built the kind of huge farm machinery described on your fob as far back as the 1880s (maybe even earlier) until they were bought out by Allis-Chalmers. For yuks, take a look at the 1915 Aultman tractor at www.1webplaza.com/tractors/94icov.htm. Pretty wild looking machine.

Believe it or not, the world seems to be filled with antique tractor mavens. If you do an Infoseek search of keyphrase "Aultman Taylor" (using the quotes), I'm sure your fob might be worth a pretty penny or two from someone within those links that surface.

Chicago Scott