Curator Response: These references are from a different era. In the 1890s, most railroads accepted any watch manufactured by E. Howard & Co. However, the Keystone Watch Case Company purchased the rights to the E. Howard name and began producing watches around 1903. With this change, along with constantly moving railroads specifications, the "Series 3" would not have qualified on most American railroads at the time of production. So, your information is not incorrect, just within a different context that does not apply here.