Specification of William Donald Napier
Subtitle: rubbers for the teeth and gums
Publisher: Great Seal Patent Office
Published: 1861
Place of publication: London
Language: eng
Subjects: Rubber; Oral Hygiene; Home Care Dental Devices; Toothbrushing
Notes: At head of title: A.D. 1861, 30th March. No. 788.

"William Donald Napier, of 22, George Street, Hanover Square, in the county of Middlesex."