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| Archaeologists have enlisted the help of the army to x-ray a sword found in Salisbury during the summer [Credit: © Wessex Archaeology] |
“The sword was too large for our in-house x-ray facilities,” reflects Laura Joyner, of Wessex Archaeology, who says the sword caused “great excitement” at the excavation.
“We were keen to learn as much as possible about this 6th century weapon, although the degree of corrosion on the sword and the fact that it was contained within the remains of its wood and leather scabbard meant that we would need to use an x-ray machine to do so.
“The Army, through Captain Doe and Sergeant Potts, kindly offered to undertake the work using equipment based at a Field Hospital Unit in Aldershot.
“The x-ray images confirmed several things that we suspected about the sword, and revealed some interesting features.
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| The corroded steel sword was found at a burial site on Salisbury Plain [Credit: © Wessex Archaeology] |
“In this case, three twisted rods of wrought iron with steel surfaces were used, showing as a distinctive pattern on the x-ray image.
“The blade itself was also edged in steel. This is probably because steel can be sharpened to a much finer edge than iron. It is possible to tell the difference between metals on an x-ray image as they corrode in different ways.”
Experts were equally thrilled at the chance to scan the other grave goods.
“The spearhead is not pattern welded like the sword, but was produced from a single piece of iron,” says Joyner.
“The shield boss has retained its studs to fix it to the wooden shield, which are plated with tin to make them into a decorative feature.”
Conservators will now analyse mineralised wood, leather and organic materials from the scabbard.
Author: Ben Miller | Source: Wessex Archaeology via Culture 24 [November 24, 2014]
