You are correct TN the drill is missing the bottom and was found real close to that cobbs so I'm going middle to early archaic as far as the material it has a lot of stain so it's hard to tell river find " your right again haha" it's some form of chert but I don't think Dover it is a real HB I dug the best I could with the froze ground no luck ;(Cobbs would be very cool. What are you thinking the material and type is on the first drill type one? Looks like a water huntI see dover and hornstone right? Good luck looks like you are on them.