ACS BDM wave

#Wavy lines or bands, zigzag lines or bands #Thin lines #One line or one band #One quadrilateral #Quadrilaterals with dark surfaces or parts of surfaces #Quadrilaterals containing one or more other geometrical figures (specify the content) #One circle #Circles with dark surfaces or parts of surfaces #Letters in light-coloured characters on a dark background #Several letters #Series of letters separated from one another other than by a single space #Letters underlined, overlined, framed or barred by one or more strokes #Series of letters in different dimensions #Letters presenting a special form of writing