SubjectSurveyingItem typeObjectProvenanceNot ascertainedPrimary inscriptionsUnsigned and undatedPhysical materialBrassDimensionsHeight: 160mmInventory No75325DescriptionSlit and window sight, with fixing slot.Related ItemsMore related itemsMagnetic Compass for Surveying Instrument, English, 18th CenturyInventory Number 62163Tripod For Surveying InstrumentInventory Number 57968Vertical Semicircle for Surveying, English, Early 19th Century?Inventory Number 75677Tripod for Surveying InstrumentInventory Number 10123