Richard, I believe you are referring to N0844 on P. 355 in TCR-8. Your 50c is the same mold and had the same Asian characters so is apparently the same series. As you can see on P. 6, we have N0844 as being "attributed" to the Allan Boyd Club but it can't be confirmed for sure. However, since N0844 is listed as Allan Boyd Club in the C-W book, it kinda makes it "Official." Your 50c chip will be listed in TCR-9 as ABC, "Attributed to..." Thanks for the notice.