This picture is looking towards the back of the HDCP from just inside the hall. The main airline runs most of the way down the hall. The two pipes on each side go into the rooms off the hall. The short sections are welded to the main line, then a piece is brought through the wall and attached with a union fitting. The closest one on the right has had the rest of it removed, but the piece remaining is marked "Worden", probably when it was shipped in 1943. The lines inside both rooms on the right are missing, they're still in the rooms on the left and the latrine though.

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