Thanks for your reply. It is 3/4 of an inch long and .4 of an inch wide at the base. And if it is no older than the 1870s how new could it actually be?
Found this today at a 1902 house in Houston, TX. Looks Civil War era to me, but I know very little. Does anyone know what this is and about how old it is? Using an AT PRO and was about 6 inches.