Specification of Robert Simpson
Subtitle: instrument for extracting teeth
Publisher: Great Seal Patent Office
Published: 1856
Place of publication: London
Language: eng
Description: Patent for "an improvement instrument for extracting teeth in a perpendicular direction".
Notes: Cover title.

At head of title: A.D. 1799. No. 2309.

"Robert Simpson, of the parish of Saint John, Clerkenwell, in the county of Middlesex, surgeon's instrument maker".