This specialised jousting shield was mounted on the left wrist of a suit of jousting armour. It covered the entire chest, with a gap for the lance. It was generally made of metal and covered with leather, usually moulded in three parts and contoured to the rider and his mount. It was introduced in the 15th Century. It confers a benefit of AC 2 (i.e. an AC lower than the armour alone by 2) against frontal attacks only while mounted. When dismounted it functions as a medium shield. 

Shield, Kote (5gp, 3 lb., 10dp)

This Oriental form of armour consists of a pair of armoured sleeves worn on the forearms, and thus can be concealed below clothing. It functions much like a buckler, with the bonuses that the kote-wielder cannot be Disarmed, and may use weapons in the hands that bear kotes. Despite the fact that a pair is worn, the AC bonus is merely +1. 

Shield, Parma (7gp, 5 lb., 10dp)

The parma shield is identical to the small shield, merely bearing a different name. This shield was used by the Thracian gladiator in the Roman arena. 

Shield, Scutum (10gp, 10 lb., 25dp)

The scutum shield is to the medium shield what the parma is to the small. It is merely a medium shield under a different name, and was used by Gallic and Samnite gladiators in the Roman arena. 

Shield, Small Wooden (1 gp, 3 lb., 8dp)

This shield is exactly the same as a small shield, save that it is made from wood. As such, it is lighter, cheaper, and can take less damage before being rendered useless.

Shield, Target (2gp, 4 lb., 10dp)

Similar to the buckler, this shield’s major difference with it was that it was worn on the forearm (as opposed to the buckler which is held in the hand). This is probably what TSR were thinking of when they made their description of a buckler. It was made of wood covered in cuir bouilli  or metal, and the wearer’s shield hand could be used to hold an item or even a weapon while it was in use. Like the buckler, it may improve the wearer’s AC by one against one specific attack per round. It dates from the same period as the buckler, but was made obsolete by firearms. In Scotland, where it was known as the targ, it survived until the 18th Century, forming the highlander’s typical wargear when combined with a broadsword.