These are reproduction autographs (not an original signature), a cost effective way to own a reproduction.
Freddie Mercury Sotheby's Tote Bag a ‘World of His Own’ Exhibition Souvenir
Freddie Mercury - A World Of His Own - Framed coat-hanger (No.4) - Sotheby's
[RARE] Freddie Mercury A World Of His Own Sotheby’s Hardback Catalogue
Queen Freddie Mercury World Of His Own Sothebys Coathanger Clothing Memorabilia
Freddie Mercury 'A World of His Own' Sotheby's Catalogue Exhibition Guide
Freddie Mercury A World of His Own Rare Sotheby’s Exhibition Guide Queen