it might not be in a series.. there are a lot of posibilities where the cue came from.. it could have been contracted in a group of cues made for a reseller sometimes you will see that.. so you may only find it with a certain reseller.. it could be a one of one, if you go on the website there is a few sold, and you cant see what they were.. maybe that was one.. it is possible its a old style that is no longer made.. my guess its probably if anything a year or two old.. i seen some similar but not that one before..sometimes if you go to ebay and look at every joss you may find it..
chris