Polish Budzogan Flanged War Mace with concealed spike 16th Century

Rare Polish Budzogan flanged steel mace. Extensively used during the 16th and early 17th centuries and following a much older design harking back to the Mongols and oriental clubs and maces. Perfectly weighted and balanced for impact and delivering a compact blow to the enemy. The steel head is set with 16 individual shaped flanges set into facetted collars, the wop set with a screwed in lobed washer and a bud. The steel shaft is tubular, halfway down there is a collar of copper possibly once set with stones or precious inlay. Long wooden cylindrical grip with a hole for a wrist-strap lanyard. Most unsually the grip can be unscrewed and a long stout four-sided spike can be withdrawn for delivering a close quarter blow, making this a most unique example. In good condition with some old pitting and wear to the metal surfaces.