A John Deere 730 Diesel like this one was the top seller at the Roger Heitman Estate Auction. This tractor was photographed by ellenm1 (Flickr) in 2010.
Top Sellers:
John Deere 730 Diesel, no. 7305486: $8,525
John Deere #30 Combine: $8,500
John Deere 4020, no. 159694R: $8,100
John Deere 630, no. 6314889: $7,000
John Deere 620, no. 6218913: $5,000
John Deere 70 Standard, no. 7015294: $4,900
John Deere 70: $4,000
John Deere 50, no. 5011066: $2,800
John Deere 620, no. 6215183: $2,500
John Deere 3 Bottom Mtd. Plow: $1,550
Lowest Sellers:
Tumble Bug: $25
Tumble Bug: $30
Buzz Saw Rig: $30
John Deere 2 Bottom Plow: $60
John Deere 3 Bottom Plow: $70
John Deere 4 Bottom Plow: $100
John Deere B, no. 250968: $225
John Deere 4 Bottom Plow: $225
John Deere 4 Bottom Plow: $250
John Deere #44 2 Bottom Plow: $270
You can see more results from this auction at the Nixon Auctions website.