A paperback copy of a declassified Vietnam War era 1964 dated Dept of the Army issued manual titled "Research and Development of Materiel: Gun Series and Gun Tubes" in good to very good condition overall. This is a comprehensive, declassified engineering design handbook published by the U.S. Army Materiel Command (AMC Pamphlet AMCP 706-250) in August 1964. The manual is part of the broader Army Engineering Design Handbook Series. It was originally compiled by The Franklin Institute and Duke University to provide engineers and military contractors with foundational, unclassified data on firearms design. Core topics covered include: operating principles, design classification, physical and mechanical properties, and muzzle devices. 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.