1922 (19 June) registered "Dr.Brender" cover from Baku to Berlin, franked on back with 10x50,000 on 3,000r brown & blue, including a block of six and two horizontal pairs (one with inverted and double inverted surcharges), all tied by departure cds, with Moscow transit and Berlin arrival markings, central filing fold through the stamps, some toning, otherwise fine and scarce