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Hallmark Research Institute

 
Address:San Francisco, CA
Country:USA
Website:www.hallmarkresearch.org
Books by this publisher:World Hallmarks

The Hallmark Research Institute (HRI) was founded by William Whetstone, Danusia Niklewicz, and Lindy Matula as a means to further the understanding about world hallmarks through lectures and their publications “World Hallmarks – Vol.I – Europe, 19th to 21 st Centuries” and Vol. II – covering Asia, Middle East, Africa, Australia and the Americas.