7th code

#Quadrilaterals with dark surfaces or parts of surfaces #Quadrilaterals containing one or more letters #Quadrilaterals containing one or more numerals #Numerals in light-coloured characters on a dark background #Numerals juxtaposed or joined to a letter or a figurative element #Numerals presenting a special form of writing #Letters in light-coloured characters on a dark background #Series of letters in different dimensions #Series of letters presenting different forms of writing #Two predominant colours