A few nice Corn images I found:

Image by Dawn Huczek
For the outside critters. (It is all dried up and hard.)

Vintage Food Ad: Del Monte Canned Corn, 1971
Image by classic_film
Vintage 1970s magazine advert, Del Monte's canned Family Style Whole Kernel Golden Sweet Corn

Ad text: "If you can see what's wrong with this corn, your standards are up to ours."

Below, in smaller font: "Kernel rows too tight. Means ear of corn has overmatured. Kernels tough, gummy. Unacceptable for Del Monte."

Published in Life magazine, Jun 25, 1971 - Vol. 70, No. 24

Fair use/no known copyright. If you use this photo, please provide attribution credit; not for commercial use (see Creative Commons license).

Corn on the cob prior to cooking
Image by devillibrarian