the appointment of BQMS still exists today, the infantry have the same CQMS. the badge shown here is for blue patrols and would include, the crown,gun badge and chevrons, if he didn't have the appointment he would be a Staff Sgt, in the Gds a Colour Sgt. pre 1968.
today's Cdn Army the rank of Warrant Officer
also in the old days you could also get a QMSgt Assistant Instructor in Gunnery circa 1900 before 1881 worn below the elbow