There is but one autographed E95 Philadelphia Caramel card that has been certified by PSA/DNA, and it is this one, featuring Larry Doyle.  One of the league's finest players and one of the more popular ballplayers of his era, Doyle was a willing signor well into his later years, so his signature is, in general, not rare.  The rarity of a signed E95 card, however, is a different story, as this is the only example we have encountered from any authentication company.  The card graded VG 3 by PSA, the signature has been applied in bold, blue ink across Doyle's breast.