Would these be considered "improperly mixed alloy" cents? If so, what premium (if any) would these have?
Yes. They look like Improperly Mixed Alloy. Nice finds. But they are only worth what a collector of such an issue is willing to pay for them. There's really no list of a set premium that I've seen.
I don't think these hold any real premium unless they are lustrous or spectacular. I sold one a few years ago for about $110. My understanding / the rumor I've heard is that Philadelphia sent most of the sub-par planchets to the branch mints in the earlier years, so Philadelphia woodgrain cents are more valuable.
Welcome Ryan. We need all of the young collectors we can get, to replace us older models. Your question has already been answered, properly I believe, so I can't add much to it. Good luck and post your coins and questions for help from some good members.
