U.S Marshal Texas badge

I found this when I was a kid while hiking in the mountains around grithic Park in Hollywood. I found it around 1989. So I belive it is pretty old. The ingraving on the back is interesting. It appears to have a social security number or something else. The name on back is Jack Lombardo. The initials are in grave TRJL not sure if that's for Texas ranger jack Lombardo? Each point have a number 1,2,3,4,5, and 6. The long number is on there twice. 181241855. Not sure what it all means. Do you think it was a movie prop or is it real. Wonder why someone would go through the trouble to engrave everything. I was offered a 150$ for it awhile back but decided to keep it, because I found it when I was a kid. I always wanted to know more, and hopefully this website can help.