BANK NOTE AND CURRENCY NOTE FUNDAMENTALS EXPLAINED

The penalty for counterfeiting and forgery of banknotes (imprisonment at least two decades) appeared to the higher proper corner of your reverse of all 3rd collection banknotes. Note this is the put up-1970 variant, that includes "Freiheitsstrafe" instead of "Zuchthaus". Standard security features at the time were guilloches, a multi-amount head wa