Device for Locking Root Valve Open or Closed in Steam Smothering System in Fire Room Bilges

Blueprint depicting technical details of Battleship Texas.
Date: February 14, 1940
Creator: unknown
System: The Portal to Texas History

A.A. gun firing system, 150M, & elementay wiring dir. 1941 alteration

Blueprint depicting technical details of Battleship Texas.
Date: October 14, 1940
Creator: unknown
System: The Portal to Texas History

Device for Locking Root Valve Open or Closed in Steam Smothering System in Fire Room Bilges

Blueprint depicting technical details of Battleship Texas.
Date: February 14, 1940
Creator: unknown
System: The Portal to Texas History