About jcastner

Jonathan specializes in sports collectibles and is an expert in soccer memorabilia. A former college player and coach, he launched GreenPitch – a regional soccer magazine in 2003. He has additional experience in the publishing industry; with stints as a newspaper reporter and as a marketing manager with a financial publisher. He obtained a Master of Science in Publishing degree from Pace University in 2011. A former member of the International Society of Appraisers, he completed the ISA Core Course in 2013 and 15-Hour Personal Property USPAP course in 2015 ... Read More.

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