Interesting claim you make. And it's Rambow, not Rambo.
Does it look anything like this? Came from a pretty rare library book written by Lassiter. Most of the time, these claims about having Lassiter's cues end up with nothing but dry wells. Please post some pictures. Since you are new, I suggest you study the "Manage Attachments" section for uploading pictures.
Love this one. I think I read somewhere that Wimpy specifically ordered this with the extra long joint pin and wrap moved back a few inches to expose the full splice. I don't know if this ever sold. Would love to see the LOA from Tascarella!