----------------------------Original message---------------------------- I have a graduate student who is working on this lithographic company in France. They established a gallery that was a branch of the International Art Union in 1848 in NYC. IN Paris they produced a lithograph after William Sidney Mount's "The Power of Music" (1848) and distributed it to members of their NY gallery as well as internationally. None of our reference sources provide any information on this company. Can any colleagues whose collections have strong holdings in engraving/lithography assist us? Please reply to me directly. Thanks very much! Ray Anne Lockard Head, Frick Fine Arts Library University Library System University of Pittsburgh Pittsburgh, PA 15260 Voice: 412-648-2410 Fax: 412-648-7568 E-mail: [log in to unmask]