1 3/4 inches wide x ~2 inches tall
Clan Crest Background:
The Thompson/MacThomas clan crest is wrapped with a strap and buckle to show allegiance to the Thompson clan chief. It is only appropriate for Chiefs, Chieftains, and Armigers (register owners of coat of arms) to wear a clan crest without the strap and buckle.
Traditionally, the Thompson/MacThomas Clan Crest is worn on the left side, as only on the right side is appropriate for Thompson/MacThomas Clan Chieftains.