Coker uses only a 3/8x10 pin to the best of my knowledge, at least the many many cues I have seen have had that pin. The cue in question is without a doubt probably a KC, Kaiser...etc. I bought a few on Ebay several years ago for around $189 to $200 and sold them for $100 each. All the ones I bought were wrapless and they were not bad cues really, chnged the tip and retapered the shafts and they played fine.