Cantabrian labarum
The Cantabrian labarum (Cantabrian: lábaru cántabru or Spanish: lábaro cántabro) is a modern interpretation of the ancient military standard known by the Romans as Cantabrum. It consists of a purple cloth on which there is what would be called in heraldry a "saltire voided" made up of curved lines, with knobs at the end of each line.