10c blue on blue 'Columbus' postal stationery envelope (H&G B6a) used with added 1878 3 x 1c green, 2c crimson lake, 5c bright ultramarine and 10c orange 'Roulette' issue (SG 54, 57, 59 & 60) tied by multiple strikes of SANTIAGO 1 cds dated 19.1.1897. Addressed to GERMANY with BUENOS AIRES transit cds and German arrival cds on reverse. A lovely four colour franking.