Exerpt from the links shared above:
"The word "Titlist" is simply a name Brunswick selected to give their 4-veneered 1-piece cue in 1941. Prior to that, it was known as model # 26 1/2, then briefly as the "Carom King", and finally, as the "Signature" model in the early 1970's. All of these cues have the same veneer color sequence of maple, brown, green then purple. The only exception was the "Ralph Greenleaf" model in the 1930's."
A conversion is the process of making a one piece cue into a two piece cue to make it more portable.