I am sure that most people reading my description of this fathometer know more about it than I do. In 1925, the Submarine Signal Company of Boston developed the first fathometer, known as the 312 fathometer, to chart the depth of water while a ship was moving. The fathometer proved more precise and easier to use than previous sounding methods, making it a vital tool for surveying the oceans.

This devise built by the Submarine Signal Company Of Boston measures 16 X 16 inches and extends out from the mounting surface by about 9 inches. It is being sold in as found condition, and has not been cleaned or tested in any way. The weight of this fathometer is 60 pounds.

We do not know the vessel name that this fathometer was removed from, but we do know that this fathometer was on display at the Jacksonville Maritime Museum until it closed in December 2015.

This would make a great addition to any collection as they are just not easy to come by today. This item can be mounted directly to a wall and will make a great display that will surly spark many conversations about it’s use and possible history.

Do not worry about the shipping of such a large and heavy piece of history, our price includes free shipping to any address here on the main land of the US. We ship all of our items via FedEx Ground and we include insurance.

Big Ship Salvage is a supplier to many different movie set designers and interior design companies looking for that hard to find real nautical piece. Why not shop were the pros shop, our inventory is ready to ship today, just call us at 574-870-1571.