The Oakeshott Type XIIa is described by the man himself as "having a broad, flat, evenly tapering blade, generally with a good sharp point and tending to widen perceptibly below the hilt" but specifically, this sub type falls into the category of Great Swords of War - two handed swords designed to wreak havok on the medieval battlefield and the beginnings of the medieval Longsword.
Unlike the other category of Great Swords of War - Type XIIIa (of which these swords were once grouped with until a later revision) Type XIIa is a compromise between the cut and the thrust, with a shearing lenticular profile yet narrow, serviceable point. Hence, these swords were very versatile - balanced between being able to cut down a lightly armored footsoldier with one blow, and pierce the weak points of a knights plate harness in the next with a well aimed and well timed two handed thrust.
While not particularly well represented in medieval art and with not that many extant examples in museums or private collections, you might think that they were not all that popular. But they were, and continue to be, with quite a few functional replicas available on the battle ready sword market.
One of the most popular replicas of a Type XIIa was the Kriegschwert sword by Valiant Armoury. Priced around $500 - it was both faithful in profile and deadly effective - and in our testing showed just how devastating these swords could be with a shearing cut that tore apart maille..
While this Great Sword ('Great' in both type and as in praise) is no longer available, there are some excellent alternatives available at varying price points.
MyArmory has an excellent in depth article on the parent Type XII swords and the sub-type XIIa here which explains their history and lists some high end reproductions and images of actual antiques.
And of course, you can - and should - read more about these swords and all the others in the Oakeshott Typology in his book, Records of the Medieval Sword
I hope this information on Oakeshott Type XIIa Swords has been helpful. To return to Oakeshott Typology Made Easy from Oakeshott Type XIIa Swords, click here