Walthers Mainline 910-20489 HO Scale EMD GP9 Phase II High Hood Western Maryland WM 31 DCC & Sound Speed Boat From the early to mid-20th

From the early to mid-20th century

The tachometer was invented by the German engineer Dietrich Uhlhorn in 1817

one of the largest and most powerful battleships in the US Navy

To create the most scale Megalodon possible

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Walthers Mainline 910-20489 HO Scale EMD GP9 Phase II High Hood Western Maryland WM 31 DCC & Sound Speed Boat From the early to mid-20thWalthers Mainline 910 20489 HO Scale EMD GP9 Phase II High Hood Western Maryland WM 31 DCC & Sound The WalthersMainline Phase II High Hood GP9 is a must have model for your first generation diesel roster! Outwardly similar to the earlier GP7, and sharing the same boxy, no frills body with its high, short hood, minor production changes in the number and placement of louvers on locomotives built from 1955 to 1957 resulted in what modelers and railfans