I don't have all the information at hand. However... the W. H. Greener co. is not related to the more famous W. W. Greener Co. (I don't think) The "Far Killing Duck Gun" is advertised and illustrated in the Johnson Sporting Goods catalog c. 1888 I thought someone else would have answered your question by now. But, since they haven't I'll look up the references tonight and post tomorrow. If you'll send me a fax number I'll fax a copy of the catalog page. Jim Barnes U.S. Army Corps of Engineers 1222 Spruce St. PD-AC St. Louis, MO 63103 (314) 331-8863 [log in to unmask]