Bidspirit auction | 1859 - 20 John gray

1859 - 20 John gray slate (13), block of four, light ivory head on the verse, new, original rubber, integrates for three specimens, perfect and very fresh. Splendid. Giulio Bolaffi (for extensive), Firme A. and E.Diena, Cert. Ferrario. Cat. 11.000.