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A bar is characterised by an "enclosed invariant convex cross-section", meaning that pipes, angle stock and objects with varying diameter are not considered bar stock. Bar stock is commonly processed by a sequence of sawing, turning, milling, drilling and grinding to produce a final product, often vastly different from the original stock. In ...
The bars did not adhere to a set weight standard, varying from about 600 to 2500 grams when complete. They were usually broken into subdivisions, and few complete specimens survive today. The surviving ramo secco bars are usually quarter, half or three quarter bars, or minor smaller pieces which could be classified as rough bronze.
The next historical step was bronze in bars that had a 5-pound pre-measured weight (presumably to make barter easier and fairer), called aes signatum (signed bronze), which is where debate arises as to whether this was still barter, or had become a monetary system. Finally, there is a clear break from the use of bronze in barter into its ...
ISBN 978-0-9575784-0-1 A new edition of Italian Cast Coinage (ICC) compiled by Italo Vecchi which summarises the research into Italy's cast bronze coinage since 1885. It lists 327 types from the aes rude and currency bars of early 1st millennium Italy to the final issues during the Second Punic War, many of which are previously unpublished.
Arsenical bronze objects appear first in the Middle East where arsenic is commonly found in association with copper ore, but the health risks were quickly realized and the quest for sources of the much less hazardous tin ores began early in the Bronze Age. [7]
Zou Jingyuan lived up to his nickname and Shinnosuke Oka capped off his dream Olympic debut with another gold medal. The King of Parallel Bars was close to perfection Monday to defend his Olympic ...
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