Mirror passenger side..
This is the one you need. https://www.megapartsusa.com/proddetail.php?prod=205-OSM869RThe application says 67 on up but will fit earlier cars. I found a nice used one at a swap meet for my 66. It looks nice but it isn't very functional. It is difficult to find the perfect spot to drill and bolt it down so you can see it around the pillars and glass runs.
