The "pipes" seen in the middle of this 1911 photo of the wireless operators' room on board Olympic are actually brass pneumatic tubes, which carried Marconigrams between the Marconi Room on Boat Deck and the Enquiry Office on C Deck. Just to the left of the tubes are the earth arrester and tuning lamp, similar to those found in the remains of Titanic’s Silent Room. (Ken Marschall)