David Paul Kersenbrock began making pool cues in 1972 in Illinois. Through the years he was instrumental in helping Jerry Franklin at Southwest, and also with Omega cues. Kersenbrock cues are for the most part unsigned. If you need authentication of a Kersenbrock cue, the best person to do that would be Lauri at Southwest pool cues.
This is an example of cue repair and cue refinishing work (not for sale) that has been done here at Proficient Billiards. Cue refinishing usually takes about 2 weeks depending on workload.