SubjectTelescopesItem typeObjectProvenanceProbably from the Radcliffe ObservatoryPhysical materialIvoryGlassCopper AlloyObject typeTelescopeInventory No91480DescriptionCopper alloy level with ivory scales.Related ItemsMore related itemsLevel of Transit InstrumentInventory Number 21632Level of Transit Instrument, incompleteInventory Number 21727Level of Transit Instrument, incompleteInventory Number 22653Level for Transit InstrumentInventory Number 41653