Two 'Siro' original artwork cartoons of jockeys, signed, both double portraits, the first of Lester Piggott & Yves St. Martin playing chess; the secon

Two 'Siro' original artwork cartoons of jockeys, signed, both double portraits, the first of Lester Piggott & Yves St. Martin playing chess; the second of Yves St. Martin and Freddy head portrayed as playing cards, the cartoon titled CRAVACHES ... 18 CARATS, the second cartoon slightly larger at 22 by 30cm., 8 1/2 by 12in.