8th-12th century. Gilt bronze, 1 1/8" total height. The crossbeam is centered with a square. The center with a semi-linear cross form and the square quarters with a saltire. The back recessed for the inclusion of a holy relic like the hair of a saint..  Professionally refurbished with 24karat gold surface restored, on a modern gilt Sterling silver neck chain. Gift boxed with certificate of authenticity.