Thank you, they're out there! Keep at it and they await you. I think the nickel rolls are the least searched at least around my parts. Pennies, quarters, and halves seem to be hit the hardest. Funny thing is, at one of our banks we use, there's an older lady in there that coin roll hunt and also gets rolls for her very elderly uncle. She knew to look for the buffalo nickels but had no idea that there was a such thing as war nickels. For that reason, they are my favorite denomination to search because it keeps it exciting for my wife and little girl to help me. It's a fun little family activity for us on our days off. I'm sure we will get an unproductive box here and there, but my fingers are crossed that we find some more unexpected treasure. Good luck, I hope you find a beautiful buffalo soon!
I am really trying to educate myself about proof and error coins too, as I am not real sure what to look for. It's great though that one coin that someone else might consider junk might make my week for me. Definitely a fun hobby that I wish I had gotten into sooner.
I love finding silver, but I haven't found a buff yet. 
