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  2. Professional Coin Grading Service - Wikipedia

    en.wikipedia.org/wiki/Professional_Coin_Grading...

    PCGS certified 1904-O MS 63 in a coin slab. The PCGS holder, or a Coin slab which is made of clear, inert plastic and is stackable. Anti-counterfeiting measures include a hologram on the back, markings within the holder, and Near Field Communication (NFC) chip embedded in some holders. [10]

  3. Coin slab - Wikipedia

    en.wikipedia.org/wiki/Coin_slab

    Reverse of PCGS coin slab with hologram in upper right corner. Slabbing coins is a practice which began in 1986. The grading of coins was a way to remove coin grading controversies by having a third party certify the coin's condition. [1] The earliest coin slabs introduced by PCGS were in use from 1986-1989.

  4. Third-party grading - Wikipedia

    en.wikipedia.org/wiki/Third-party_grading

    Third-party grading (TPG) refers to coin grading & banknote grading authentication, attribution, and encapsulation by independent certification services.. These services will, for a tiered fee depending on the value of the coin, "slab" a coin and assign a grade of 1–70 on the Sheldon grading system, with 1 being the lowest grade, with only faint details visible to 70, a practically perfect ...

  5. Coin grading - Wikipedia

    en.wikipedia.org/wiki/Coin_grading

    Coin grading [1] is the process of determining the grade or condition of a coin, one of the key factors in determining its collectible value. A coin's grade is generally determined by six criteria: strike, preservation, luster, color, attractiveness, and occasionally the country/state in which it was minted.

  6. Sheldon coin grading scale - Wikipedia

    en.wikipedia.org/wiki/Sheldon_coin_grading_scale

    Example of an Early American Cent - the coins that inspired Sheldon to create a more precise grading scale. (Courtesy of the National Numismatic Collection, National Museum of American History [photograph by Jaclyn Nash].)

  7. Standard wire gauge - Wikipedia

    en.wikipedia.org/wiki/Standard_wire_gauge

    A standard wire gauge. The British Standard Wire Gauge, often referred to as the Standard Wire Gauge or simply SWG, is a unit used to denote wire gauge (size) as defined by BS 3737:1964, a standard that has since been withdrawn. It is also known as the Imperial Wire Gauge or British Standard Gauge. Although its use has significantly declined ...

  8. Cody Reeder - Wikipedia

    en.wikipedia.org/wiki/Cody_Reeder

    Having joined YouTube in 2011, Reeder initially began posting videos of his experiments to show to his grandmother: "I would do science experiments all the time anyway ... Then other people started watching them", he explained in a 2017 interview. [11] His channel Cody'sLab reached 100,000 subscribers in October 2015.

  9. Lego Dimensions - Wikipedia

    en.wikipedia.org/wiki/Lego_Dimensions

    Lego Dimensions features the same style of gameplay as the previous Lego video games developed by Traveller's Tales, in which up to two players control Lego minifigures based on various represented franchises. Players progress through linear levels, using their characters' abilities to solve puzzles, defeat enemies, collect collectibles such as ...