Significance

Has a strong association with Theo Dunstan Inspector in Ballarat; would have been issued to crews in order operate the tram car doors.

Physical description

Piece of painted, mild steel rod bent at 90 degrees and shaped at longer end to give a square shape for use in external doors on SECV Ballarat Trams - known as a square key. Was used to secure doors in both open and closed positions. Has been painted black.