50 KM - 2012, 2017, 2019 and 2024 Issue FBiH RS Watermark Cleartext security thread See-through registar Motion™ security thread Optically variable ink Intaglio printing Watermark Cleartext security thread See-through registar Motion™ security thread Optically variable ink Intaglio printing Watermark A multitone watermark of the sculptures bearing lamps from the main entrance to the Central Bank of Bosnia & Herzegovina in Sarajevo. Below the sculpture theme, each KM denomination has its own highlight watermark showing the value of the banknote. The watermark is visible under transmitted light, i.e. when the banknote is held up against the light. Cleartext security thread Security thread fully embedded in the paper, with text “50 KM” - denomination of the banknote. See-through registar When the banknote is held up against the light, printed elements on the front side and the back side of the banknote fit together to form the shape of a rhombus. Motion™ security thread All KM banknotes of the new series feature a 4 mm wide windowed security thread. The thread motive displays a quill which moves in the direction of the viewing angle: • When the upper edge of the banknote is tilted towards the viewer, the quill moves to the left • When the lower edge of the banknote is tilted towards the viewer, the quill moves to the right • When the right edge of the banknote is tilted towards the viewer, the quill moves up • When the left edge of the banknote is tilted towards the viewer, the quill moves down Intaglio printing Intaglio printing is used on the front side of the banknote in the marked areas and can be felt with the fingertips. Optically variable ink The denomination number in the lower right corner of the back side of the banknote is printed with a special optically variable ink. When the banknote is tilted at a certain viewing angle, the color shifts from purple-red to greenish brown.