This uncirculated 50 Mark der DDR note is a standard circulation banknote issued by the State Bank of the German Democratic Republic. It is a red note that is dated 1971 and measures 138 mm x 58 mm. Its obverse side features the national coat of arms and the portrait of Friedrich Engels. Its reverse side shows an oil refinery. Security features include a solid security thread, a 7-digit narrow serial number, and a watermark of Friedrich Engels.