Viking halberd difficult to know what kind of weapon is being described in these translations, or the original texts. Many of these terms are shown below. The "atgeir" was a type of bill or halberd, from Old Norse "geirr", "spear". The "atgeirr" is thought to have been a foreign weapon and is rarely mentioned in the sagas, but is famous as the favorite weapon of Gunnar of Hlíðarendi. In Njál's saga this weapon is shown as used mostly for thrusting, but also for hewing. The "höggspjót", literally "hewing spear", takes its name from Old Norse "högg", "stroke, blow, slaughter, beheading" and "spjót",
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