It's closet-cleaning time! Selling an assortment of mirror mounts:
2x Newport MM-1
1x Newport P100-A
2x New Focus 9807
One of the New Focus mounts has some grime on it, looks like old epoxy or something? Both MM-1s have first surface mirrors but they're not in great condition, you'll probably want to replace 'em.
Asking $60 for the lot, shipping included if within the US.