10 Mark on 75 Pfg dark vermilion provisional issue 1922, single franking on insured letter (declared value 1000 Mark) to Ammendorf/Saalkreis, double-circle BEUTHEN 8.6.1922 (OS handbook no. 015.10), arrival (9.6.1922) on reverse, interesting early inflation-period document, age and use wear typical of period