Scale desktop display model. No naval craft used during the war in Vietnam came to symbolize the Brown Water Navy like the PBR’s, which were the mainstay of river operations by the US Navy. These tiny craft were the spiritual descendants of the PT Boat operations of World War Two. After the initial run of PBR MK-1’s were built the PBR MK-2 boat was introduced. These boats were slightly larger with more powerful engines. The main exterior difference between the MK-1 and the MK-2 was the addition of a larger superstructure and aluminum gunwales on the MK-2. These were installed to protect the hulls from being damage when coming alongside sampans and junks for inspections by US forces, inspections needed to stop the flow of arms and supplies being infiltrated to guerrillas fighting against the south. Length 18 1/2 inches. Ships in a wood crate. The item “Vietnam War PBR riverboat US Navy display mahogany wood custom model boat” is in sale since Thursday, March 19, 2015. This item is in the category “Collectibles\Transportation\Boats & Ships\Military\Models”. The seller is “magnumspec” and is located in Corona, California. This item can be shipped worldwide.