细节
cover 40pa. mauve (2) and 50pa. deep green (two vertical pairs, all perf. 9½x12) neatly arranged on small 1875 (20 Oct.) double rate envelope to France (24.10 arrival), tied by ornamental "BEOGRAD" c.d.s., internally redirected within Paris. An extremely rare example of the 280pa. double rate to France, and the finer of the four recorded frankings. M.17/18IC. Photo in colour