|User collections|| William Wales by NMMCollections |
|Gallery location||Not on display|
||Surveyors chain of iron links 8 inches in length. Every 6 1/2 ft there are brass markers. The Imperial length (by conversion from that stated below) is 71 ft 6 ins.
||National Maritime Museum, Greenwich, London
||metal: brass; metal: iron|
||Overall: 70 mm x 330 mm x 190 mm; Length: 21793 mm|
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