Glaive treatise "Paradoxes of Defence" by the English gentleman George Silver, the glaive is used in the same general manner as the quarterstaff, half pike, bill, halberd, voulge, or partisan. Silver rated this class of polearms above all other individual hand-to-hand combat weapons. The Maciejowski Bible (Morgan Bible) depicts an example of a two-handed glaive used on horseback. The contemporary term for this weapon may have been "faussart", which was used for a variety of single-edged weapons seen as related to the scythe (along with terms such as "falchion", "falcata, or fauchard" derived from "falx", the Latin term for "scythe"). The
Bill of quantities As the rates for materials and labour change due to inflation, these books are frequently republished.. The practice historically of estimating building costs in this way arose from non-contractual measurements, taken off drawings to assist tenderers in quoting lump sum prices. There are different styles of bills of quantities, mainly the Elemental BOQ and Trade Bills. A Contingency sum is an item found within a Bill of quantities (BoQ). The item refers to unforeseeable cost likely to be incurred during the contract. There are two types of contingency sum. The first refers to a specific item, e.g., 'additional alterations to