1 RM with 4 and 40 Pfg numerals as well 16 and 24 Pfg worker in colourful mixed franking on special delivery registered letter with autograph delivery and exactly 184 Pfg postage from BURGSTÄDT (Saxony) 3.4.48 to Bad Oeynhausen, legitimate condition, scarce postage step, arrival 6.4.48