Steve, Your photo of the back is very good. Granted, you can't quite read the imprint, but it's very similar to the imprint used by the Rubber Stamp Co. Los Angeles, Cal., circa 1900. They were a large badge co. who sold their badges to many police and law personnel and enforcement agencies for many years around the turn of the century. They had standard star patterns, 6 point, 5 point, shield patterns, etc. I sold off my copy of their catalog,and most of my badge collection some time ago, but if you can find a copy, I'll bet it has a sample picture of the same 6 point star style as yours. Do you know the provnance of you father's badge? If it was a dept. issue by El Paso, then they should have a record of their purchases and which officer was No. 14. Perhaps the payroll records would identify if there was a No. 14. My identification of the item as a replica, based on the front picture, implied it was a modern replica and may be incorrect, as the back side tells me it's an old badge, whether official El Paso issue, I don't know. Being old doesn't mean its not a copy or a salesman's sample badge, made to see if an order could be obtained. Badge collectors have many examples of those sample badges and if proof of an order cannot be found, then they are just considered samples only. Many police and law agencies of that period required the officer to furnish his own badge, gun ,horse, whatever, so he ordered what he could afford from a catalog such as the Rubber Stamp Co. in Los Angeles. A clue that it might be an issued badge is that it is numbered. Which also means there should be a roster somewhere in the El Paso PD archives that would help solve the mystery. I worked in law enforcement in El Paso in 1951-52 era but wasn't looking into their history at that time, but it was a very interesting period in my life experiences.
