I think the mask is one of those swimming pool masks with a built-in snorkel and ping-pong ball valve (cut off on right of image). Most had plastic lenses and some were amber, sort of built-in sun glasses. It always amazed me that anyone though it was a good idea let alone spend the money for tooling to make it.
I enlarged the woman's mask from the Coke ad and then began an on-line search for that model.
No luck so far, but that is because I got so distracted during the search. These types of mask/snorkel combos go back a long way:
The one above appeared on Scubaboard a few years back.
It seems that it took a few years before the designers of these things figured out that you didn't need to put the snorkel smack-dab in the middle. Must have been very distracting. Eventually, they refined the concept and diminished the number of cross-eyed divers they were creating.
After a while, they went to twin snorkels:
Below is the Dutch Princess Irene wearing one:
They got to be pretty popular:
Even Sandra Dee wore one in her movie "Gidget."
I found an example of this
Riviera Cannes model:
And then realized I once owned a 1950s
Riviera Monaco model:
I loaned it to a girl at the country club and she laid it down on the concrete edge of the pool and the convex, amber plastic surface got too scratched up to use anymore. I gave it to my little brother.
Anyway, it looks like they are still trying to perfect the mask/snorkel combo idea. Here is one that is currently on the market:
And below is a REAL Mickey-Mouse swim mask: