I remember watching the Penguins back in the day, and the last goaltender to play without a mask (as far as I know) - Andy Brown, I think. Thought he was completely nuts.
You are correct on that one. Andy Brown played parts of three seasons in the NHL from about 1971-72 through 1973-74 for Detroit and Pittsburgh without a mask. On April 7, 1974, he played his last (and the last by a barefaced goalie) in the NHL against the Atlanta Flames. This game was broadcasted by NBC and I would love to see if NBC kept colour videotapes of this and other games they broadcasted back during the 1972 to 1975 era. As a further note, Brown jumped to the World Hockey Association’s Indianapolis Racers the following season and continued to play maskless until his retirement (due to back problems) in 1977. Indianapolis is where Wayne Gretzky later started his pro career in 1978-79.
Went to a Penguins game with seats right behind Brown. He WAS completely nuts.