1974 or 1976
This enamel badge has a lot of confusion regarding its origins. Supposedly this promo button was given out a 1974 gigs. Although conflicting stories place these at around the time of the DESTROYER tour with a few photos of fans outside the 1976 Anaheim gig seen wearing them. Could it have been used as a VIP pass before the Japan 77 shows where they started reappearing?
Thanks to Chopareno for the pic and info! Thanks to Paul Scarborough for the additional info!