18 Antique Indian ArrowHeads Montana Estate Find

18 " Antique Authentic Indian ArrowHeads. First let me say i know nothing about these Antique ArrowHeads. All are Authentic and were discovered in an Old Estate. The past owner stated his grandfather purchased them from a private collector while living in Montana, they all appear to be in good condition. sorry this is all i know about these arrowheads. please see all pictures, good luck, high bidder pays, $ 9.00 shipping. i will not ship outside the United States. thank you.