Duster mirrors - what kind are these?

I would like to replace my stock 74 Duster mirrors with black ones like these: what kind are they? Anyone know where I can buy? Or buy ones like it? Can you adjust the mirror by pressing on it?

I should mention I don't want to drill new holes... or make any interior changes, just take old ones of and put new better looking ones on.

Thanks!

1974 Plymouth Duster - Crazy Like A Fox