Aes Rude, Ingot, Roman Republic and Central Italy, RM, c. 5th - 4th Century B.C.
Æ; 42mm x 21mm/94.5gm or 3.33 oz
Con/ As Cast; wonderful and eye-pleasing green and brown patina
Ref/ BMCRR I p. 1, Haeberlin pl. 1, Vecchi ICC pl. 1, Thurlow-Vecchi pl. 2, SRCV I 505,
Ex David MacDonald collection!
As noted below, this ingot-type of aes rudes exhibits the transition between the more common 'as smelted' and the true "Aes formatum" (cast bronze). Nearly all of such ingots tend to be flat on one side and often on two sides. Sadly, history does not inform us as to why, or how, they were formed in such a manner. Our example is flat on one side.
Seller's Note/ In Italy, as with other nations, early trade used a system of barter. Aes rude (Latin: "rough bronze"), used perhaps as early as the early 8th century B.C., was the earliest metal proto-currency in central Italy. In the 5th century B.C., bronze replaced cattle as the primary measure of value in trade. Aes rudes are rough lumpy bronze ingots with no marks or design, some are flat and oblong, others are square, while many are irregular and shapeless. The metal is mostly copper with roughly 5% tin. Weight varied considerably with some exceeding twelve pounds and others under an ounce. Many smaller examples are fragments of broken larger specimens. A balance was necessary to measure value for commercial transactions.
From the early bronze age metal was used to manufacture implements and weapons and copper or bronze in any form was a valuable trade good. Metal is particularly useful for barter because it is compact, portable, easy to store, and does not spoil. The first type of smelted bronze bullion metal cast by Romans was rough lumps of bronze known as "aes rude" (rough bronze) pieces of no precise weight and a variety of sizes. Axe heads, rings, cast bronze shells, rods, bars, and ingots, for example, were traded alongside aes rude. All bronze objects were suitable for trade by their weight and were frequently broken to adjust their weight and to make change.
Despite its great advantages, it was not until the middle of the 5th century B.C. that bronze replaced cattle as the primary measure of value in Roman trade. The Roman Lex Aternia et Tarpeia (c. 454 B.C.) a.k.a. "Tarpeian Law" replaced livestock as 'money' with copper, defined as weight of metal per ox (cattle). The Republican law stated oxen were to be valued at 100 libra (pounds) of copper each and sheep at 10 libra.