Back to 35Whelen’s original question: In the 1920s cartridge names were not standardized as they are today. As Eley made the first .404 cartridges for Jeffery, the cartridge was often called .404 Eley by other gunmakers. This avoided putting a competitor’s trademark on a rifle not made by Jeffery. Also, if a customer walked into Lancaster’s shop and saw a rifle marked Jeffery, he might have had the idea: “Before spending my money on such a copycat by Lancaster, I would rather go around a few London corners and buy a Jeffery original.” For the same reasons the 1920s Kynoch catalogs called the cartridge neither Jeffery nor Eley, but simply “.404 Rimless Nitro-Express”.