Jeff holds a Masters of Business Administration from Pepperdine University and a Bachelor of Arts in History from Cornell University. Upon his graduation from Cornell in 1998, Jeff chose to pursue a life-long love of coins. Since then, his passion for coin collecting has blossomed into a successful and rewarding career.
Jeff launched his professional numismatic career in 1999 when he went to work for Heritage Numismatic Auctions (now Heritage Auction Galleries) in Dallas, Texas. There he served as both a Cataloger and the Catalog Production Manager for the firm’s U.S. coin catalogs, handling thousands of rare and important United States coins. He also designed and wrote many of the marketing pieces produced by the firm during his tenure. After a short stint as a Cataloger with Superior Galleries of Beverly Hills, Jeff moved to California in 2004 to accept the position of Director of Numismatics with Bowers and Merena Auctions of Irvine. He later served as Vice President of Numismatics at Rare Coin Wholesalers of Dana Point, California.
In addition to extensive numismatic cataloging and marketing experience, Jeff is a widely read numismatic writer credited with groundbreaking work in the field. His first book, Collecting & Investing Strategies for United States Gold Coins, was published early in 2008. Delving deeper into the U.S. gold series, Jeff then completely updated and revised David W. Akers' classic work A Handbook of 20th-Century United States Gold Coins: 1907-1933. Additional books authored include Collecting & Investing Strategies for Walking Liberty Half Dollars — the first book published on this important and popular series in 15 years — Collecting & Investing Strategies for Barber Dimes, What to do with Granddaddy's Coins: A Beginner's Guide to Identifying, Valuing and Selling Old Coins and a forthcoming title Collecting & Investing Strategies for Peace Dollars. Jeff also served as sole editor of the book World's Greatest Mint Errors by Mike Byers.
Jeff has also authored numerous articles. A market analysis entitled, “Profit from the Central America Treasure? — Previous Coin Hoards Suggest a Surprising Opportunity” appeared in the February 2001 edition of Rare Coin Investment Trends. Turning his attention to proof Liberty Seated Dollars, Jeff authored “Proof 1840 Seated Dollar Restrikes” for Volume 28, Issue No. 83 of The Gobrecht Journal. This article was reprinted in the May 7, 2002 edition of Numismatic News under the title “Restrike Proof 1840 Seated Dollars Possible.” Two follow-up articles on proof Liberty Seated Dollars, “Reverse Die Dates 1854 Dollar Restrike to 1859” and “Restrike Proof 1856 Seated Dollar Confirmed,” appeared in the June 4, and July 30, 2002 editions of Numismatic News. Works published in Coin World include "The Last Double Eagle” (co-authored), which appeared in the June 3, 2002 edition. Two additional articles, “Unique Indian Eagle May Have Been First” (November 11, 2002) and “Republic Shipwreck Yields RPM $20” (February 7, 2005) garnered front-page exposure.
From 2009–2011, Jeff served as a Market Analyst for Coin Values magazine. During that time he authored two articles that received front cover exposure in the publication: “Truth Time for Barber Dimes" featured in the March 2010 edition; and "Learning to Walk" (about Walking Liberty Half Dollars) appeared in the June 2010 edition.
Jeff received an Extraordinary Merit Award from the Numismatic Literary Guild (NLG) in August 2002 for his article titled “Proof 1840 Seated Dollar Restrikes” that appeared in The Gobrecht Journal. A second Extraordinary Merit Award from the NLG followed in August 2010 for his book Collecting & Investing Strategies for Barber Dimes.
Early in his career, Jeff's achievements as a numismatist were honored with a scholarship to attend the American Numismatic Association (ANA) Summer Seminar. In 2007, he came full circle, this time returning to the ANA Summer Seminar as an instructor and originator of the course "Attributing United States Coins." Jeff is a member and supporter of the ANA and the NLG, and he has been a contributor to the well-known book A Guide Book of United States Coins (The Official "Red Book" of U.S. coins) by R.S. Yeoman since 2008.
In 2007, Jeff founded Ambio Rare Coins, Inc. and also graduated from the Texas Auction Academy. Through his business, Jeff worked as a technical and marketing consultant for rare coin auction houses, dealerships and brokerage firms across the United States, including Bowers and Merena Auctions (now Stack's Bowers Galleries) in Irvine, California.
In 2011, Jeff returned to Stack's Bowers Galleries to accept the position of Vice President of Numismatics and Auction Production. In this capacity he continues to serve as one of the firm's senior numismatists for United States coins and exonumia, trains and supervises the Stack’s Bowers Galleries numismatic cataloging staff, and manages the overall catalog production process for the firm’s U.S. coin and exonumia sales.