From 10/1/41 through 12/31/50, certain services performed on foreign vessels by merchant
                  seamen employed by an agency of the War Shipping Administration (WSA) or the U.S.
                  Maritime Commission (USMC), through 2/10/42 only, are covered.
               
               Services for the following individuals are not covered:
               
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                           Longshoremen hired by the WSA or USMC;
                           
                         
                      
                   
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                           Seamen hired by other agencies of the Federal government;
                           
                         
                      
                   
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                           Seamen aboard vessels time-chartered to the WSA or USMC;
                           
                         
                      
                   
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                           Seamen aboard foreign vessels bareboat chartered to WSA or USMC; or
                           
                         
                      
                   
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                           Seamen employed under contract entered into outside the U.S.