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Description: | Copper alloy trebuchet or tumbrel-type folding coin balance probably dating to the 13th century. The incomplete pivot or stirrup arm has a stylised zoomorphic snakes head terminal with a collar about 15mm further down the arm towards the pivot. At the pivot there is a rectangular slot, in the sides of which are two opposing holes holding a pin on which the balance beam pivots. The arm is hollow and oval in cross section to allow the balance beam to be folded away into this gap. The balance beam remains intact, this is flat on one side and rounded on the other. It is undecorated and tapers slightly at one end whilst the other end is flattened and rectangular in section. Interestingly, the balance beam also has zoomorphic features so that it also looks like a stylized snakes head with two punched eyes. The portable balance was used to check the weight of coinage. The balance weighs 15.3g; the pivot arm measures 61.6mm in length. The width of the arm across the pivot is 9.6mm. The length of the beam arm is 56.5mm. Parallels can be seen in Salisbury Medieval Catalogue Part 3 Fig. 42, and in Medieval Artefacts by Nigel Mills (NM.219a & b). | Format: | text/html | License: | http://creativecommons.org/licenses/by-sa/3.0/ | Publisher: | The Portable Antiquities Scheme | Rights holder: | The Portable Antiquities Scheme | Subjects: | archaeology | Temporal: | 1250
1400 | Source: | Portable Antiquities | Creator: | Anna Marshall | Identifier: | http://www.finds.org.uk/database/artefac... | Language: | en-GB | Format: | text/html | Go to resource |
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