Hi billysmith, Welcome to the Chip Board. You may get more replys if you use your real name instead of a computer pseudonym. You mentioned the top two chips are the fronts and the bottom to chips are their backsides.I find this interesting because I collect chip mold types and I have not seen the two different styles of that "B" mold on the same chip. Double check that chip, and if it indeed has a different style on each side, I would be interested in getting one. As far as where they are from, I don't know. A lot of "B" mold chips are from the Pacific Northwest.