I went down to the docks this afternoon to look at this ship, which has been tied up at Pier 40 for the last couple of weeks. The USCG Cutter Fir, WLM-212 lighthouse and buoy tender. Launched in March 1939, she's a National Historic Landmark. Here's the history:
http://www.uscg.mil/history/webcutters/NPS_Fir_HAER_Report.pdf
Isn't she sweet? The linked document has a wealth of information and drawings.
Then I went a little further south to Pier 80 and found this:
USS Tripoli (LPH-10)
A great day, if not entirely productive. Oops, here come the bus, time to go!