This Pickett Pocket Slide Rule N600-ES Synchro Scale is a must-have for any engineer or collector of vintage scientific equipment. Made in the United States, this slide rule is a high-quality tool for precise measurements and calculations. It comes with a pocket clip and leather sheath for easy storage and transport. Perfect for use in engineering, science, and medicine, this slide rule is a great addition to any collection of vintage equipment. Its compact size and lightweight design make it easy to carry around, while its durable construction ensures that it will last for many years to come. Whether you're an engineer or a collector, this Pickett Pocket Slide Rule N600-ES Synchro Scale is sure to impress.