Sociedad de Cambios, a sheet of unissued 1920-Reis (4), Montevideo, 1 July 1856, black and white, pale red underprint at centre, horses top centre, value at each corner, counterfoil at left (cf PS.431 for issuer), this type and style completely unlike the notes illustrated in Pick, watermarked paper, engraved by Webb & Hunt, Liverpool, good extremely fine, very rare