The arms of the burgh of Arbroath in Scotland : "Gules, a portcullis with chains pendant Or".
The arms of the municipality of Beaufort West in the Western Cape (South Africa) : "Gules, a portcullis with chains pendant all Or".
Snap!
Different supporters, though : St Thomas a Becket and a 14th-century Scottish baron for Arbroath, but a merino ram and an angora goat for Beaufort West.