Culpeper By Mann And Ayscough, Circa 1745

A rare and early example of a Culpeper-type microscope, unsigned, but of English origin and attributable, due to its round base and double-triple balusters, to the London-based manufacturing duo James Mann & James Ayscough, who were in partnership between 1743 and 1747.
This large Culpeper microscope features an early form and style: a wide, straight cylindrical body, particularly ornate pillars, and an eyepiece section whose shape closely resembles that of the earliest wooden Culpeper microscopes.
The microscope is constructed entirely of brass. Its original optics are functional, but it has retained no accessories.
Approximately 40 cm tall.

For an example with a round base and absolutely identical pillars signed by Mann & Ayscough, see the specimen at the Science Museum.