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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 ]
The Professional Sports Authenticator (PSA) company graded this card a PSA 8 Near Mint-Mint (NM-MT) on their 10-point scale, [31] [32] the highest grade given to a T206 Honus Wagner card. Bill Hughes [33] was the official grader of the card, working for PSA at the time. Hughes admitted to knowing that the card had been altered when he graded it.
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.
A PSA 1 Mantle is expensive, running around $25,000 to $35,000. A PSA 9 Mantle — there are fewer than 10 known in existence — fetched a whopping $5.2 million at auction in January. Condition ...
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8 to 10: “poorly differentiated” or “high-grade” Grades are assigned to two areas that comprise most of the cancer. The two grades are added together to come up with the Gleason score.
A more contemporary reporting standard includes the Grade Groups. [9] [10] [11] For prostate cancer, grade group information and prostate-specific antigen levels are used in conjunction with TNM status to group cases into four overall stages. [10] [citation needed] Grade Group 1 = Gleason 6 (or less) Grade Group 2 = Gleason 3+4=7; Grade Group 3 ...
Those with localized tumors and PSA between 10 and 20 ng/mL are designated stage II – subdivided into IIA for Gleason grade group 1, IIB for grade group 2, and IIC for grade group 3 or 4. Stage III is the designation for any of three higher risk factors: IIIA is for a PSA level about 20 ng/mL; IIIB is for T3 or T4 tumors; IIIC is for a ...