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Mural arc made for King George III

1770
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