Interesting Grouping

[UncleJohn]

Another grouping of points that are on the line. The last (Alberta)? slipped in the photo by mistake bottom row.
Any comments on these?
TY

[wmwallace]

Do you have a size average on these John? Would help a bit in the identification. Some may be arrowpoints, or birdpoints as some call them. The 3rd one from the left looks to be a very early point depending on size. Bill

[UncleJohn]

Sorry for got size tool. They are all around 40mm.
TY