David Bowie 1976 At Nassau Coliseum Three Disc Acetate Set 10 Rare

Up for bid are these three acetate discs of David Bowie at the Nassau Coliseum in 1976.
Disks are in overall very good condition with some hazing causes static, one pressing bleb that causes a skip on station to station cut .
Purchased from a man who is active in the New York radio scene in the 70s.
Thanks for looking see my other auctions, Steve