Until 1 September 1961, lance corporal and lance bombardier were only appointments rather than substantive ranks, given to privates who were acting NCOs, and could be taken away by the soldier's commanding officer (whereas a full corporal or bombardier could only be demoted by court martial). The Royal Engineers and Army Ordnance Corps also used the similar rank of second corporal, which was a substantive rank (also wearing one chevron), until 1920. Until 1920, bombardiers in the Royal Artillery were equivalent to second corporals and until 1918 (when the rank of lance bombardier replaced it), acting bombardiers were equivalent to lance corporals (both wearing one chevron).