WOW—thanks, George! Duh… I was looking for it in BBS catalogs! What a surprise when I actually read the patent affidavit and spotted “Mather Manufacturing Company” (parent corporation of Keystone TF, Philadelphia). Luc Devroye uploaded a scanned specimen of Cellini Boldface from the 1903 catalog, which indexes Cellini (not the boldface). This design, the only one that Lauschke and/or Schmol did not assign to BBS, was apparently short-lived; it was not shown in 1906 nor in 1910.