What is this mirror for?

Hey guys. I bought a mirror listed for a '70 GTX on Ebay and had it shipped to my cousin in CA. She took her time getting me the package and when it arrived I noticed that the remote is different from the one that came on my car. The mirror itself is identical. The cables are longer as well )though that doesn't make a difference). My question is, what car is this mirror correct for? The second picture shows the difference. Thanks.

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