Does any one have information on how long Schuyler, Hartley and Graham were in bussiness?I have a cartridge box marked with the name but only with the address of 19 maiden lane,NY,In the 1864 catalog it shows two addresses the one above and22 john street.This leather box is painted I believe white,now looks yellow dirty white.and has the letters B C B painted on the cover in gold and brown.Looks like standard cw box without inside pouch.The sling has a brass or copper single tine buckel,2 by 2&3/8.Thanks for any help.Joe