I see that you are in Chris' Super Bowl Pool. So am I!
What you have is a nice little group of "average circulated"
Liberty nickels.
You must remember that these coins were still used all throughout the War years. A subway ride. A phone call.
Change back from a daily newspaper. The nickel had value
and people used these along with the Buffaloes and the "new"
Jefferson nickels.
They grade from AG to VG. The 1912 is a VG IMO.
You might study these in preparation for the purchase of a nice example in Fine.
Compare the 1912 to the 1910 and then to the others. [I am referring to the obverse.]
See how as the letters of "LIBERTY" appear the detail in the
bonnet also begins to appear.
Look on
ebay for examples being sold as a Fine. Compare the photos to those in your possession. And if you feel adventuresome check out the very fines as well.
Learn to appreciate just how difficult it is to find an example with the "I" in "LIBERTY" showing.
Good collecting!