Vallance, J., & Hellen, R. (1794). A catalogue of books, prints and drawings, being the collection of the late Honourable Judge Hellen, which will begin to be sold by auction, by James Vallance, ... the 10th day of February, 1794, ..

Vallance, James, and Robert Hellen. A Catalogue of Books, Prints and Drawings, Being the Collection of the Late Honourable Judge Hellen, Which Will Begin to Be Sold by Auction, by James Vallance, ... the 10th Day of February, 1794, .. 1794.