The United States Coast Guard Cutter "Fir" (WAGL/WLM 212) was the last lighthouse tender built specifically for the United States Lighthouse Service to resupply lighthouses and lightships, and to service buoys. "Fir" was built by the Moore Drydock Company in Oakland, California in 1939. On 22 March 1939, the U.S. Lighthouse Tender "Fir" was launched. She was steam driven with twin screws, in length, had a beam of , drew of water, and displaced 885 tons. "Fir" was fitted with a reinforced bow and stern, and an ice-belt at her water-line for icebreaking. She was built with classic lines and her spaces were lavishly appointed with mahogany, teak, and brass. The crew did intricate ropework throughout the ship. The cost to build "Fir" was approximately 390,000. "Fir's" homeport was Seattle, Washington for all but one of her fifty one years of service when she was temporarily assigned to Long Beach, California when was decommissioned on 1 July 1982.