The silver coin tester performs true silver non-magnetic checks using two methods like acoustic and magnetic tests, enhancing reliability for collectors who need precise identification of in diverse trading or appraisal scenarios The gold and silver piece tester ensures accurate results through machining, offering stable vertical suspension testing with a moderate clamping force for consistent performance in evaluating specimens without damage, ideal for collectors verifying authenticity The gold piece tester includes a mini magnifier, silicone piece holder, measuring mat, wooden hammer, sturdy carry pouch, and piece magnet clip, enabling users to examine pieces with while protecting their surfaces for collectors or hobbyists who need reliable equipment for accurate assessments The coin tester combines magnetic design with acoustic resonance analysis, delivering clear and interpretable graphs while maintaining pocket-sized portability, perfect for enthusiasts confirming coin details anytime and anywhere With its ability to avoid oil stains and prevent scratching, this pocket tester ensures long-lasting durability and consistent functionality, offering peace of mind to collectors examining rare numismatic items regularly, Weight: 0.37699046802 Pounds, Manufacturer: Teuypty