I grew up mostly in my home state of Florida in the 60s and 70s in the Tampa Bay area. Hours spent in the gulf off Anna Maria as well as springs like Lithia outside of Tampa. A great childhood! We also lived overseas some and the last time I used one of these open face, old fashioned masks was when we lived in Taiwan, ROC, in the late 70s. The water off Taiwan and nearby islands was crystal clear and beautiful. On one trip out to Orchid Island, we were all snorkeling and my step-father dove down to check out a reef and hit the front of his mask on a rock and it broke into several pieces! He didn't get cut luckily, but he warned us that our masks didn't have tempered glass.
When we got back to Florida in 1980, I bought my first silicon, non black mask, a US Divers I recall, from a dive shop that's still on US 1 in Riviera Beach/Lake Park. Although with a different name. I used that mask up into the mid 90s.