1961 (?) John Deere Model 550 Grain Dryers Vintage Ad #952

This original 10 x 13" magazine ad is not dated so I'm guestimating it to be early sixties maybe 1962 based on other ads I have that are dated. The ad features a John Deere Model 550 Grain Dryer as well as a portable 98 Crop dryer in the inset.