Photo No. 60. One of the Steel Pontoons being placed in position
Submarine Appliances And Their Uses - 1911
Pontoner
Illustrationer
Photo No. 61. One of the Pontoons being sunk
Submarine Appliances And Their Uses - 1911
Photo No. 62. The Ship righting. The tripods are clearly shown
Submarine Appliances And Their Uses - 1911
Photo No. 64. The Vessel afloat. Two of the Pontoons alongside
Submarine Appliances And Their Uses - 1911
Fig. No. 68
Submarine Appliances And Their Uses - 1911
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