Don't know but a quick search came up with an empty one on sale at Amazon for $25.50 says its from 1970.
https://www.amazon.com/Buff-Henley-Paper-Co-Sugar-Packet/dp/B01N3U3LEX
I collect: Baseball, Football, Hockey, Mostly Vintage pre1980, My Homie teams - Washington/Baltimore Teams Senators (Twins, Rangers), Expos/Nationals, Redskins, Capitals, Bullets/Wizards - HOFers - Non-sport (mostly TV shows and movies).
My Trade List is very much a work in progress
CaptKirk42s Trading Card Blog Curly W Cards Strive For '65 YouTube klandersen42