US NAVY SPECIALIST MARK - PIPEFITTER 1948 TO 1958.  Established from various wearing the mark of shipfitter/blacksmith in 1948.  Merged back into shipfitter in 1958.  Rare mark only in service 10 years.

 

1.  BPCL 40-47 21 Feb 47 Eff 2 Apr 48.

2. BuPers notice 1440, 18 Jul 58.

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