DEMON '91

#Natural phenomena #Signs, notations, symbols #Quadrilaterals #Letters or numerals forming geometrical figures, written or typographical matter in perspective #Letters presenting a special form of writing #Numerals presenting a special form of writing #Flames #Motor cars #Punctuation marks, brackets, quotation marks #One quadrilateral #Quadrilaterals containing other figurative elements #Quadrilaterals containing one or more numerals #Quadrilaterals containing one or more letters #Quadrilaterals with dark surfaces or parts of surfaces #Letters or numerals forming a figure in the shape of an arc of a circle #Letters in heavy characters #Letters in light-coloured characters on a dark background #Numerals in light-coloured characters on a dark background