For the curious: Size 50 (14.3mm) shell stones
Posted: Tue Feb 04, 2020 1:24 pm
Do you want to play with some boulders? About $5,000 including the fast shipping option from Japan. I do not believe I have ever seen bowls large enough to hold size 50 stones. They would need to be huge and robust with sturdy thick walls and likely be another $1,000.
https://www.ebay.com/itm/Go-Clam-Shell- ... SwBG9cqy4P
https://www.ebay.com/itm/Go-Clam-Shell- ... SwBG9cqy4P