Scanning banknotes is not as easy as you might think. Many scanners now have software which detects banknotes and produces a deliberately degraded image. This is annoying if you are either a forger or if you like collecting old banknotes and showing them off. My skills, unfortunately, are limited to the latter rather than the former. This is a German 100 Mark banknote. Whilst it is dated 1908, its' green shield and serial number suggests it was printed in the period between 1918 and 1922, just before the great German hyperinflation.