1923 (Jun 6) Registered cover to Strasbourg, Berlin, franked with pair of 25k green and grey-violet with marginal top, pair 50k brown-red and green and pair of 1r pale-brown and brown and orange, star overprint in black, tied to the reverse by "SAK" cds, Strasbourg arrival dated 18.6.23, very scarce cover and appealing despite the apparent soiling and imperfection, none of which affect the stamps. (Image)