The genuine syrup of de Velnos, prepared by Isaac Swainson, sole proprietor of the medicine, at no. 21, Frith-street, London.

[London, 1793?]

4p. ; 80.

ESTC N1831

Electronic reproduction. Farmington Hills, Mich. : Thomson Gale, 2003. (Eighteenth century collections online). Available via the World Wide Web. Access limited by licensing agreements.