There are eleven presentation cases known to have shipped with .357 Combat Magnums and are serial numbered to the revolvers on the bottom in white grease pencil. Olympic Wholesale, Los Angeles, CA purchased five .357 Combat Magnum presentation cases on June 21, 1956, and five on July 26, 1956. Rex Firearms in NY purchased four presentation cases on July 3, 1956. It is not known if these cases had a serial number of a .357 Combat Magnum written on the bottom in white grease pencil or if the cases were associated with a specific revolver. On October 21, 1971, Rex Firearms shipped a Class C-engraved .357 Combat Magnum, K940639, with a mahogany presentation case (it is the only one known).
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