Nit sure what CV means, but I'm sure it relates to the handle. My Herters catalog says that the CVs came in either CV17 or CV22. The 17 and 22 referred to the degree of deflex in the handle.
Apparently Herter's thought the 17 degree deflex was the best EVER.
to quote:
17 degrees of delfex eliminates completely any twisting of the bow and wrist while shooting. This not only allows complete ease of shooting but also prevents arrows from being thrown out of the target from poor wrist action. The 17 degree delfex after prolonged testing of this model, conclusively proved that 100% bow stability was required during arrow release and that maximum cast and efficiency had been attained with no stack.
*
WOW! You just gotta love the way Herters wrote in those catalogs. And that was just about the degree of deflex in the handle. There's a lot more about the glass, woods, finish, and everything else. Every detail to the bow is AMAZING and the BEST EVER. :D
.