on Inside Cover: "Oestreicher 21st." [Signature black ink], "ride, Mstr Brln. April 21" [handwritten. Sticky notes, pen, reconstr. Münster-Berlin April, 1921], "community Friedrichsthal District Niederbarnim" [Stamp], "Socialist Unity Party, local group Friedrichsthal District Niederbarnim" [Stamp], 224 [signature blue on SED stamp]; to cover title: A II d 3/15 [signature, pencil], P 29 [signature, brown ink, crossed out, sticker] and in the text: underline [pencil]
