A History of the Submarines Built at the
Mare Island Naval Shipyard

Exhibit by Steve Shay
Frame 2, Page 7

USS Spot SS-413
Balao class (No reported postmarks)
Launched May 19, 1944

Commissioning cover, unknown cachet design artist, Type Fz shipyard shore cancel.

Cover 672: Spot SS 413, August 3, 1944

Made 3 war patrols in the Pacific during World War II. Did not sink any ships. Decommissioned at Mare Island June 1946. Modernized 1961, loaned to government of Chile January 1962. Renamed Simpson, S-21. Simpson decommissioned 1975 and stricken from US Naval register. Reactivated as Simpson 1977 after major refit. Decommissioned 1982.

 

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