40c violet 'Opening of the International Bridge Between Argentina & Brazil' UNISSUED type showing the bridge & Presidents Vargas & Justo. A fine unmounted mint side marginal block of six with 'CONTEM 72 SELLOS' imprint in margin. (See note in SG)
40c violet 'Opening of the International Bridge Between Argentina & Brazil' UNISSUED type showing the bridge & Presidents Vargas & Justo. A fine unmounted mint side marginal block of six with 'CONTEM 72 SELLOS' imprint in margin. (See note in SG)