Source for all (used, vintage) toys: www.ebay.com, individual sellers, in 2018
Above #890 toy farm tractor
In original package, #415 Forage Harvester Field Chopper Tractor Attachment, above
Bottom plow, 1/16th size
International Harvester Eska Farm Pickup Truck, above
Original ad on page from Toys and Novelties, December 1, 1967, also for sale on ebay.
Ad on right side of page is a Carter Tru-Scale No. 421 Tractor, Rockford, Ill.