to tell you something about them, if not let me know . Thanks

this is my complete collection. I dont know much about them. It was my parents collection they found in Peru, they spent about 20 yrs down there working in the copper mine, when they passed away it was left yo me. Im mainly trying to find out thier worth, are they collectable etc. I have no knowledge about arrowheads so I found this sight not knowing whare to turn. I hope the photes are good enoug