Fig. 4From: Ink marks, bronze crossbows and their implications for the Qin Terracotta ArmyExamples of some marks under the digital microscope: a the numeral 9 (九 jiu) from part A of the trigger in Fig. 3b, and small image showing the texture of brush marking; b part of the character (甲 jia) from part B of the trigger in Fig. 3a, c the incised mark from part B of the trigger in Fig. 3b (戌 xu), showing very sharp chiselling with triangular tool-marks, and d the incised mark (a symbol or unknown character) from part A of the trigger in Fig. 3b, also showing chisellingBack to article page