A set of antique ivory pool balls with good color and no noticeable major cracks would be worth $20,000 to $30,000. No one has used ivory pool balls since they found a replacement over a century ago. A few ivory cue balls may have remained in use, but not object balls. Ivory balls have to be trued -- turned down to be round again -- every five years or so. They would have also been re-dyed at that time.
The last set of ivory pool balls I saw on Ebay went for $4500 in 2000. They looked like the "double stripe set here, but not as nice. This is from the Stellinga book "Pool and Billiard Collectibles" from 20 years ago. Inflation. Restrictions on ivory. (click on image to see a larger version)
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