Item: Mac Demarco Signed Autograph Salad Days Vinyl Record Album PSA/DNA COA Description. This Vinyl Record Album, Salad Days, has been hand signed/autographed by Legendary Musician, Mac Demarco. The album features PSA/DNA Authentication. Please note, PSA/DNA no longer issues physical certification cards. The certification is the PSA/DNA sticker, and digital COA in their database. PSA/DNA Certification Number: AP55789. At Nick’s Sports Autographs we specialize in 100% authentic, Sports, Political (including Presidents) and Celebrity Autographs (Hollywood and Music). We travel worldwide to obtain our inventory.