I collect antique pool ball sets. Almost all my sets are pre-WWII (not phenolic or plastic.) I know many of the pool ball collectors, but there are many on ebay buying that don't know about our group. If you know a pool ball collector or a billiard antique collector who collects balls, please refer them to this thread so we can trade and communicate. It is far easier to complete sets when you have a lot of buddies with duplicates to trade.