Lot of 1970s Paul McCartney Wings Promo EGG Cards

Here's a set of 5 WINGS - BACK TO THE EGG promo cards...issued for Paul McCartney and Wings in the early 1970s. Cards measure 1 3/4 by 2 7/8 inches and feature photos of each band member including Paul's first wife, Linda. Backs have a bio of each band member. All cards are in near-mint condition.