4 M dark ultramarine block of ten at back, 50 M dark green olive block of three postage stamps issue 1922 on registered letter from Tychy (vorm. Tichau) to Berlin, ZKr TYCHY 22.1.1923 *, still used German registered label Tichau (Kr. Pless), transit postmark ZKr Wroclaw 29.1.1923 and arrival postmark ZKr BERLIN 30.1.1923 * 50 a both at back, the letter durchlief the foreign currencies check in Wroclaw: closing slip of paper (OS handbook number II A 3), official stamp violet single circle post monitoring place Wroclaw (OS handbook II B 2) and violet rectangle cancel with two lines P. Ue. 29.1.23 . at back, in Berlin final was the letter with postage due allocated: manuscript notation 1000 with blue pencil