Old as Dirt!
Join Date: Nov 2008
Location: Tampa Bay Area
Thanked 154 Times in 146 Posts
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Re: casting Bronze porthole rings
Considering the time, expense and experience needed for the success of such an effort, you might find you are better off, and will have better results by dealing with a knowledgeable, experienced fabricator that might even have what you need off the shelf. For example, take a look at Bristol Bronze
"It is not so much for its beauty that the sea makes a claim upon men's hearts, as for that subtle something, that quality of air, that emanation from the waves, that so wonderfully renews a weary spirit."