First version 2 chain drive.
Custom John Deere 6600 combine on tracks with raisable 6 row corn head
Vintage John Deere 6600 Combine Dual Chain Drive
1/32 John Deere 6600 Combine
No. 643 Six-Row Corn Head - Ertl - For John Deere 6600 Combine - 1970s
No. 443 Four-Row Corn Head - Ertl - For John Deere 6600 Combine - 1970s
VTG Ertl John Deere 6600 Die-Cast Combine 1/24 1970s Missing back wheels
