Technical Rear mirror doubt

[lfp]

Dear friends,
I have some doubts regarding the rear mirror from my 1958 Fiat 600 model.
Below I send you photos from my car and from the manual too.

 

[summersc]

mine does look different than yours. Here is a pic of mine in a 1960 600. Yours look flipped. I think mine is stock, but cant be 100% sure.