By the way, the cue is itself is a "cheap knock off" of Rambow's work. But it is collectable. It's a first run cue, one of the first Adam cues, made in Japan.
I just checked, I got mine in 2019 in nice shape (not perfect but much better than yours) for $275. And that was with 2 original shafts with the aluminum inserts.
I am guessing you are getting offers in the 200 to 250 range, and maybe crackpots saying it's a fake.
If you look up prices for s new butt cap, wrap, and refinish at Proficient Billiards you can get an idea why the condition matters so much.
A refinish with leather wrap is $325. Plus whatever the butt cap replacement costs and whatever else they run into. Is the shaft straight?
I would guestimate another $100. Then there is shipping both ways. That eats up the value of the cue pretty fast.
Frankly, it's worth whatever someone will pay. I would throw a starting price of a couple hundred on it and let an auction run to completion.
But be prepared for problems, like buyers wanting money back due to the condition, even though it is clear in the pictures.
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