MIL-S-23429 Complete Document History
Signal, Underwater Sound Mark 59 Mod 0 and Mark 59 Mod 1


Obsolete Revision Information:
   NOT - SIGNAL, UNDERWATER SOUND MARK - May 17, 1977
   BASE - SIGNAL, UNDERWATER SOUND MARK - Oct. 26, 1964
   AMENDMENT 1 - SIGNAL, UNDERWATER SOUND MARK - Jan. 1, 1960