R = To the right Wk = very good AR - End of Message Z - hit 2 Signals by battery - formed by strips of cloth laid on the ground

(drawing of rectangle) = "yes" or "ready to fire" (picture of 2 rectangles) = Not understood

(drawing of two parallel rectangles) = 'No' or "Not Ready" (Picture of rectangles in T shape) - Finishing firing Come in.