Aspen - outside mirror holes - dimensions

[pooch]

Hey guys,
could please some of you share dimensions of the holes used to mount the outside rearview mirrors on? (Applicable for Aspen 1976, Two Door Coupe)

Ideally also with a picture just for reference.
Would be really helpful!

Thx.

 

[DCAspen]

What kind of mirror is on it

 

[pooch]

What kind of mirror is on it

"395 SPORT Dual Rearview mirrors, from ROBERK"

- seems to me like the holes were altered by previous owner & I'd like to verify that (there are currently two holes visible on both sides but the car originally had remote controlled rearview mirror on the LH side.)