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Thanks Chris, picked up the last pack of 10 (the only way they sold them) at Amazon U.S.

What were they called/listed as?

You can use a 4 sided die. 1=N etc.

While not taking sides, I'm sure that someone will devise a play sheet to keep track of sails, damage, etc. for each ship before long.

I do own a large box of assorted dice and would probably try...