Wolfgang Puck Opens the First Spago on the Sunset Strip
ESTIMATED75% CONFIDENCEWikipedia[1] gives the year only - "The first Spago location opened in 1982, on the Sunset Strip in West Hollywood" - so the pin takes that year's last day. The place is the present Beverly Hills room, not the Sunset Strip original.
The first Spago opened in 1982 on the Sunset Strip and made Wolfgang Puck a name outside kitchens, largely by putting the wood-fired pizza oven where the dining room could see it and topping the pizzas with smoked salmon rather than tomato. The restaurant later moved to Beverly Hills, where it still trades, and the brand grew into a group.