Worked pieces-need your expertise

[autographcollector11]

I am posting pics of pieces that I believe are worked or were utilized at one point. I am trying to determine how to differentiate worked from natural flaking. I see some flakes that look to be worked but not sure it is simply from wear over the years.
Can you advise if these are legit pieces?
Thanks

 

Amazon Forum Fav 👍

Cry Of The Eagle: History And Legends Of The Cherokee Indians And Their Buried Treasure - Grab it through Amazon!

[EricTheCat]

I have far less experience than many here so take this for what it is worth. They sure look worked to me and the first one I have no doubts about. I think you are on the right track. I would sure keep looking in that area. Good luck!

 

[autographcollector11]

Thanks-for the flintknappers out there-can mother nature create this type of work on a piece? I am trying to differentiate between worked pieces and mother nature effects. What are the keys to look for? Any thing that I should focus on via magnification?
thanks