I have 3 cues, 5 shafts listed on Ebay. Manwon ID'd these as Karl Mayer cues, but I can't gurantee that they are.
https://www.ebay.com/itm/192538357704?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1558.l2649
https://www.ebay.com/itm/192538357704?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1558.l2649