Oh my, a blast from the past.

MMNS was "Michigan Masters Numismatic Services." Then it moved to Port Richey, Florida and dropped the "Michigan" from the name. Back in the day, they advertised everywhere and exhibited in several of the big conventions. Their website is long gone.
On a positive note, their slabs clearly showed the edge of the coin. I'll give them props for the plastic.
Their owner was a literal rocket scientist
named Bob Haire.
This coin must have been slabbed 10-15 years ago.
EDIT: I have to admit, that's one I never thought I'd see again.
Edited by fortcollins
07/05/2022 1:54 pm