These are some crosbow bolt heads i found at a current auction. Pictures with lenght from top to bottom:
-the first is 7cm long
-the second is 7,5 cm long
-the third is 15,5cm long
-the fourth is10cm long
-the fifth are 9 and 12 and are supposedly of saxony orrigin
-the sixed are5,5 to 13 cm long and are of norman origin
-the seventh are 8 to 11 cm long
