Ticket stub from game played Nov 30, 1973, Minnesota @ Vancouver.
Legendary Gump Worsley plays his final game without a mask.
Gump opened the season Oct 13 at Buffalo finally deciding to wear a mask.
However, he would then play the next 5 games WITHOUT a mask.
Finally, he went back to the mask permanently beginning Jan 9, 1974 vs Detroit, so the records 
indicate the final game played without a mask was Nov 30, 1973.
The ticket is in good condition with some creasing, but really not a major issue.