8c red on laid paper postal stationery envelope (H&G B2a) used with added 1877 2 x 8c lake 'ABNCo.' issue (SG 44) tied by ADMON CORREOS SN ANIO DE ARECO cds's with fine boxed S. ANTONIO DE ARECO CERTIFICADO No. 142 registration marking alongside. Addressed to ITALY with large boxed MILANO FERROVIA CAMBIO COL ESTERO marking also on front. CERTIFICADOS B.A. transit and PADOVA arrival marks on reverse.