MIL-I-17988/11 Complete Document History
Insignia, Cap and Hat, Chief Petty Officers (U.S. Coast Guard)

Complete Current Edition:
   REVISION D - INSIGNIA, CAP AND HAT, CHIEF P - June 25, 1990

Obsolete Revision Information:
   REVISION C - INSIGNIA, CAP AND HAT, CHIEF P - Jan. 25, 1984