Quote Originally Posted by Tony Two-Cent View Post
Is it Pontiac? I was thinking it was to a Mercury.
Thank you Tony, I stand corrected! That is indeed a Mercury key, this style being used 1961-65. The one I saw during an image search came up as Pontiac, so was also mislabeled and explains why I couldn't easily find any others. I was also off base because it isn't the typical double sided Ford/Lincoln/Mercury key they used after this style.