Trying to determine original aint color on my 65

I have a 65 convertible built December 10 1964
I'm not sure if this makes it a early or late build
Paint code is "K"
on Early builds this is" SilverSmoke Gray"
on Late builds this is "Med Gray Metallic"
Not sure what I should have and Not sure what I really do have

What do you think ?
 

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