Gennert sometimes purchased and resold products from other manufacturers. This camera is identical to the Gundlach-Manhattan Korona Royal.
Catalogue of Photographic Apparatus and Supplies No. 58,
G. Gennert (New York, NY), 1908, p. 7
References:
Catalogue of Photographic Apparatus and Supplies No. 58,
G. Gennert (New York, NY), 1908, p. 7
Not in the Catalogue No. 59, 1909