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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]
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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 ]
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.
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.
In May 1995, the group once again changed its name, this time to the Professional Skaters Association, International.. In 2014, the Federal Trade Commission filed a complaint [7] against the PSA, claiming they had violated Section 5 of the FTCA by preventing members from recruiting the students of other members.
The Pennsylvania System of School Assessment (PSSA) is a standardized test administered in public schools in the state of Pennsylvania.Students in grades 3-8 are assessed in English language arts skills and mathematics.
PSA International Pte Ltd, formerly the Port of Singapore Authority, is a global port operator and supply chain company.One of the largest port operators in the world, PSA's portfolio comprises over 60 deepsea, rail, and inland terminals across more than 180 locations in 45 countries, including flagship operations in Singapore and Belgium, and encompasses supply chain solutions, marine, and ...