Balance brace for south facing, 8-foot mural quadrant from the Radcliffe Observatory, Oxford. Made by John Bird in 1772. Balance Brace for Mural Quadrant 1772
Instrument component for south facing, 8-foot mural quadrant from the Radcliffe Observatory, Oxford. Made by John Bird in 1772. Instrument Component for Mural Quadrant 1772
Instrument component for south facing, 8-foot mural quadrant from the Radcliffe Observatory, Oxford. Made by John Bird in 1772. Instrument Component for Mural Quadrant 1772
Instrument component for south facing, 8-foot mural quadrant from the Radcliffe Observatory, Oxford. Made by John Bird in 1772. Instrument Component for Mural Quadrant 1772
Counterpoise with lead weights for mural quadrant of 8 foot radius by Bird, 1773 Counterpoise with lead weight 1773
Instrument component for south facing, 8-foot mural quadrant from the Radcliffe Observatory, Oxford. Made by John Bird in 1772. Instrument Component for Mural Quadrant 1772
Instrument component for south facing, 8-foot mural quadrant from the Radcliffe Observatory, Oxford. Made by John Bird in 1772. Instrument Component for Mural Quadrant 1772
The south facing, 8-foot mural quadrant from the Radcliffe Observatory, Oxford. Made by John Bird in 1772. The south facing, 8-foot mural quadrant 1772
The south facing, 8-foot mural quadrant with hinged counterposied weight for the telescope, from the Radcliffe Observatory, Oxford. Made by John Bird in 1772. South facing, 8-foot mural quadrant from Radcliffe Observatory 1772