This seems to be the firm Corliss joined possibly after the dissolution of the Corliss & Bancroft Partnership. Interesting backstamp as it also seems to be pitching another portrait branch of W.O. Long at 395 & 687 Eighth Avenue. This is the same W.O. Long that was in Partnership with G.W. Heppner under the name The National Photographic View Company at 235 East 34th Street, a stone's throw from S. Marksville's Firm.