As many of you know, I go to half-a-dozen or more tractor events every year, take random photos of the tractors on display, then leave self-addressed, numbered envelopes on the seats of the tractors I shoot. Each envelope contains a form asking for the year, make and model of the tractor, the story behind the tractor, the owner’s name, town and his or her contact information. I get a good number of those envelopes back in the mail. If I shoot 250 tractors, I’ll get back maybe 25 envelopes.