A paperback copy of "Primacord Detonating Fuse: What it is... How to use it" by The Ensign Bickford Co. in good condition overall. "Primacord Detonating Fuse: What it is... How to use it" is a historical technical publication by The Ensign-Bickford Co. that documents the specifications and industrial applications of Primacord, a brand of high-velocity detonating cord. Primacord, developed in 1936, is categorized as a high explosive. It consists of a core of Pentaerythritol Tetranitrate (PETN) protected by multiple layers of specialized textiles and waterproofing materials. Unlike slower-burning fuses, this material is designed to detonate at extremely high velocities, approximately 23,000 feet per second, allowing for the near-instantaneous transmission of an explosive wave along its entire length. The publication outlines how the cord has been utilized in specialized fields that require the synchronized initiation of multiple explosive charges. 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.