Kmullen

You are correct it is a rheostat. this particular one is not in service.One just like it is in use today about 50 feet away from this one. It’s purpose is to adjust the excitation Field voltage on a 225 MW generator

What valve do I use?

I think you mean the Jones Act. The Jones Act is a federal law that regulates maritime commerce in the United States. The Jones Act requires goods shipped between U.S. ports to be transported on ships that are built, owned, and operated by United States citizens or permanent residents. https://en.wikipedia.org/wiki/Merchant_Marine_Act_of_1920 The Logan act deals with Foreign Governments. The Logan Act (1 Stat. 613, 18 U.S.C. § 953, enacted January 30, 1799) is a United States federal law that criminalizes negotiation by unauthorized American citizens with foreign governments having a dispute with the United States.

Depends which way you go. To Starboard Oceanside Harbor to port Del Mar boat basin

Her Keel was hogged 18 inches. She is beyond economical repair.

Dauntless in the background