Ok, I have a followup question now. I purchased a copy of the Houze book and it arrived today. Looking at the picture, caption, etc. It indicates that it is on "page 41" of the "May 1, 1878" catalog. In my "reprint" (circa 1966) of the May 1, 1878, catalog, page 41 is in the ammunition section, but it's a page of rimfire cartridges, beginning with .46 Short. The centerfire section starts a couple of pages later, and only lists the 45-75 for the 1876. Can anyone help with the reason for the differences?
Thanks,
Hugh