1903 Koronas, Gundlach-Manhattan Optical Co., (Rochester, NY), dated March 15, 1903, ~6"x8", 64pp

This is stated on page 64 to be the second edition of this catalog.  It is the first such catalog printed after the merger of Gundlach Optical Co. and Manhattan Optical Co., and, accordingly, features the Wizard View, the Wizard name continuing from the Manhattan line.  The Korona Compact and Korona View are also still offered, as they were in the Gundlach-only catalog of 1902.