[toybulldog]

As I'm taking a closer look I notice the "M" in "Mario" in the letter of provenance and the "M" in "Mario" in the inscribed photo are way too close for comfort. The "R" in the inscribed photo is consistent to the "R" on the signed gloves. I think good ol' Mario himself is a more likely canidate to be the signer of the gloves than is Rocky Marciano.