cover 1913 50f. lake on blue horizontal pair, the left stamp showing variety "35" error of value, affixed together with 1915 War Charity 16f. on 1917 (19 July) registered express XU5 (opened out for display and slightly reduced) to Nagyszeben, tied by both "KOLOZSVÁR" despatch and (20.7) arrival c.d.s.; the envelope has been folded (clear of adhesives) and shows some damage to the express label. One of the great rarities of the Turul issue, only two such covers bearing the error of value survive, the other being in the Budapest Postal Museum. Photo in colour