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PSA was launched in July 1991 by David Hall, owner of the coin grading company Professional Coin Grading Service (PCGS), to serve collectors as a third-party card grader. [1] At the outset, the business faced difficulties owing to a limited demand from collectors who sought card grading services. [2]
Collectors Universe Inc. is an American company formed in 1986, now based in Santa Ana, California, which provides third-party authentication and grading services to collectors, retail buyers and sellers of collectibles. Its authentication services focus on coins, trading cards, sports memorabilia, and autographs.
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Standish served as Vice President of Professional Sports Authenticator (PSA) and launched PSA/DNA First autograph Sammy Sosa- authentication from 1996 to 2001. During that time, Standish authenticated a number of high-profile sports items including Mark McGwire ’s 70th home run ball [ 13 ] and Henry Aaron ’s 715th home run bat and ball. [ 14 ]
Professional Coin Grading Service (PCGS) is an American third-party coin grading, authentication, attribution, and encapsulation service founded in 1985. The intent of its seven founding dealers, including the firm's former president David Hall, was to standardize grading.
Numismatic Guaranty Company (NGC) is an international third-party coin grading and certification service based in Sarasota, Florida. It has certified more than 60 million coins. NGC certification consists of authentication, grading, attribution, and encapsulation in clear plastic holders.
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PSA software is designed to improve the performance and profitability of professional services firms. A recent end-user survey conducted by SPI Research [4] showed significant improvement in key performance indicators such as: Faster staffing and invoicing workflows; Lower project cancellation rates; Improved on-time, under-budget project ...