Chelsea Filter Knew Concepts Principles of folding

Principles of folding

Helps transfer layout lines and design marks onto reflective metal

0 mm (soft metals) Stand Dimensions 9" L x 4-1/2" W Origin Made in the USA What's Included

Round cable dapped and flat construction with alternating rondel-shaped beads between links

Built for sustained bench use

Chelsea Filter Knew Concepts Principles of foldingThe Chelsea filter is a compact gemological tool used to help identify certain red, blue, and green gemstones by observing characteristic color reactions under filtered light. It is especially useful for spotting imitations mixed into colored stone parcels and jewelry, and for differentiating emerald from common emerald look alikes. Features Assists in identifying select red, blue, and green gemstones Commonly used to detect simulants in colored stone