Small, center-gripped shields, called bucklers, came in many variants. Traditionally round and flat, domed or concave, 15th century examples could also be diamond-shaped or even formed like grotesque masks. They could be studded or have iron fittings, even long spikes. They were often made from organic materials sporting a central iron boss. From about 1350 onwards full metal ones start to appear. The examples shown above and right are is from Norway.
The replica shield in the background was made by Vegard Vike, Oslo.