Holt Tractor Self-Propelled Gun

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M1920 75mm Model Id: 1905 Manufacture: 1) Maryland Boulevard, Aberdeen Proving Ground, USA Number of Photos: 3 Click here or on the image for this tank's profile page Unique ID: 736 Serial Number: Registration: Name: Other Identification:

Mark X 4.7in Model Id: 1910 Manufacture: Rock Island Arsenal Museum, Rock Island Arsenal, Rock Island, Illinois, USA (Sole manufacturer) 2) U.S. Army Artillery Museum, Fort Sill, USA Number of Photos: 5 Click here or on the image for this tank's profile page Unique ID: 737 Serial Number: Registration: Name: “SLO POKE” painted on gun barrel sides. Other Identification: