I agree with the other comments on the quality of that picture and it would be good on a calendar.
The other fun thing comes to mind is think of these 3 old veterans talking of how hard they worked over the years etc.
Example: One D says, "I remember working 16 hours straight with the only break when my owner shut me down for fuel ."
Then the other D says, "that's nothing I worked for 24 hours straight and they fueled me up without even shutting off my engine."
The third D said, "I got you all beat, I worked 36 hours straight without being shut off for fuel and for 18 hours of the 36 I had to pull two discs instead of one cause the other tractor, an old Allis broke down so they hooked his disc on to me also !"