Sentence:  It was for this reason , and no other that I can see , that in September 1912 , Braque took the radical and revolutionary step of pasting <WSD>actual</WSD> pieces of imitation woodgrain wallpaper to a drawing on paper , instead of trying to simulate its texture in paint . 
Meaning of the word marked with <WSD> tags:  being or reflecting the essential or genuine character of something