cover 1879 (14 April) yellow XU5 with printed advertisement for Bryce Grace & Co. from "CALLAO AND CHINCHA ISLANDS" on front, addressed to Scotland, bearing 1867-80 3d. plate 5 pair with fine "C38" numeral, and Peru 1d. green (2, one with paper join) tied by very fine "CALLAO" c.d.s., showing fair strike of the red "INSUFFICIENTLY/PREPAID" alongside and manuscript "Too Late franked 4/-", some slight creasing or soiling and minor perimeter faults, still fine and attractive. Photo