Early Culpeper type microscope, c 1725.

Azimuth sundial, early 18th century.

Culpeper's reflecting microscope, c 1728.

Microscopes, 1787.

Cuff-type microscope, early 18th century.

Culpeper microscope in case, c 1746.

Culpeper microscope, c 1746.

Culpeper microscope, c 1746.

Case for a Culpeper microscope made by George Adams, c 1746.

Handbill advertisement for a microscope, early 20th century.

Marshall type compound microscope, late 17th-early 18th century.

Marshall type compound microscope, late 17th-early 18th century.