You really should post some pictures of the cue, it would help greatly in identifying it. To my knowledge (and I certainly could be wrong) but the standard line of Huebler cues did not have ivory butt caps. If you look at the bottom of the butt cap by the bumper and see some engraving that says Huebler custom shop and a year, then its possible it could be ivory. Huebler cues can also be dated by the way the Huebler stamp is horizontal or vertical. The pictures would probably yield you a quick answer as there are many knowledgeable people here.