A 1941 dated WWII Ordnance School Text "Finder, Range, 1 Meter Base, M1916". The WWII Ordnance School Text "Finder, Range, 1 Meter Base, M1916" is a technical instruction manual used by the U.S. Army Ordnance School to train soldiers on the operation, maintenance, and repair of the M1916 coincidence range finder. The M1916 Range Finder was a precise optical instrument used by U.S. artillery and infantry units to calculate the exact distance to a target without needing to fire. The "1-Meter Base": Refers to the physical length of the instrument, measuring exactly one meter from one end of its internal optical housing (which housed the receiving mirrors) to the other. During World War II, The Ordnance School at Aberdeen Proving Ground, Maryland, published specialized texts to teach Ordnance mechanics how to service these delicate fire-control instruments. Bidders are welcome to preview items in person during our normal operating hours Tuesday through Saturday 11am-6pm. Estimated shipping parcel size (LxWxH) 14 inches x 12 inches x 4 inches. Please note, shipping estimates are provided for LiveShipping calculations only and may vary based on weight and location. The auction house will combine multiple lots to reduce shipping cost. Please inform the auction house prior to paying your invoice for special shipping requests. Our primary method of shipping is via UPS Ground.