Valuable secrets concerning arts and trades : or, Approved directions, from the best artists, for the various methods of engraving on brass, copper or steel : of the composition of metals, and varnishes,[etc.].

An abridged translation of Secrets concernant les arts et métiers, first published in Philadelphia, 1795, under title: One thousand valuable secrets in the elegant and useful arts.
First printed leaf in library's copy is torn away at top, removing the word 'Valuable' from the title page.