Another Plaque From a Long-Serving Submarine
USS Sirago (SS-485) was commissioned on this day in 1945. A Tench-class submarine (basically, an improved Balao-class boat), she was built at the Portsmouth Naval Shipyard, like Razorback.
Entering service too late to see combat, Sirago spent several years participating in various training exercises before being modernized under the GUPPY program in 1948.
Like Razorback, Sirago initially received a "step sail". She served in that configuration until 1962 when she had a "North Atlantic" sail installed. Sirago went on to serve another 10 years. She was decommissioned in 1972 and was sold for scrapping.