Edevine, the answer to your question, "Is this a civil war toe tap?" is... maybe yes, maybe no. Here's the explanation of that answer.
The specific version of shoe-toe-protector you found was invented and patented in 1859. (Patent date is November 29, 1859, see the photo below.) Ones made during the 14-year life of that US Patent had to be marked with an anti-copying notification saying "Patent" or "Patented" along with the date. Because the one you found has the Patent marking, it was made sometime between 1859 and 1873. So, MAYBE yours was made during the civil war years, and maybe it wasn't.