These are reproduction autographs (not an original signature), a cost effective way to own a reproduction.
Bruce McLaren in his M4B at Monaco reproduction autograph poster choice of frame
Bruce McLaren sat in his McLaren - F1 Colour Photo
BRUCE McLAREN THE MAN AND HIS RACING TEAM OUT OF PRINT BOOK F1 CAN-AM M9 M6GT
Bruce McLaren the Man and His Racing Team by Eoin Young (1995, Hardcover)
PHOTO WAYNE BOYD IN HIS RED VAN DIEMEN MS13K WITH SAM MCKENZIE BEHIND IN HIS RA
PHOTO TOM RAWLINGS ROUNDS BECKETTS IN HIS ATTRACTIVE JKS02 ON HIS WAY TO 7TH IN
