Compound microscope
1701-1723
Spyglass, 1765
1751-1775
Spyglass by Edward Nairne, 1749-1775
1749-1775
single opera glass (prospect glass; spy glass)
1745-1755
Longcase clock movement by John and James Harrison
1726-1728
Chromotrope, centre scene-windmill with moving sails
1890-1900
telescope (prospect glass; spyglass) 1-draw tube
1745-1755
Prospect spyglass telescope with shagreen tube and horn or darkened ivory lens mounts
1745-1755