Factory Coat of Arms Shield Logo Key

[x75]

I picked up this key blank years ago and then forgot what car it fits. I tried the key in several door locks arond here and it did not fit 50s Fords or 70s Chevrolet. I am stumped.

Does anyone recognize this shield?

[atikovi · Accepted solution]

Looks like Plymouth from the ship in the center.

[x75]

thanks so much, after your hint I did some looking around and found similar emblems on early 50s Plymouth.