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  2. 4711 - Wikipedia

    en.wikipedia.org/wiki/4711

    Glockengasse 4 in Cologne, the headquarters of 4711 Third address book of Cologne, 1797, page 179. On 3 October 1794, in view of the French troops standing just outside Cologne, the city council approved a plan proposed by the guard-committee to number all houses in the city without exception and to install what would be considered appropriate lighting for each location.

  3. List of most expensive coins - Wikipedia

    en.wikipedia.org/wiki/List_of_most_expensive_coins

    List of most expensive coins Price Year Type Grade Issuing country Provenance Firm Date of sale $18,900,000 1933 1933 double eagle: MS-65 CAC United States: King Farouk of Egypt: Sotheby's [1] June 8, 2021 $12,000,000 1794 Flowing Hair dollar: SP-66 CAC United States Neil, Carter Private sale [2] January 24, 2013 $9,360,000 1787 Brasher ...

  4. List of bullion coins - Wikipedia

    en.wikipedia.org/wiki/List_of_bullion_coins

    Under United States law, coins that do not meet the legal tender requirement cannot be marketed as "coins". Instead, they must be advertised as rounds. [3] Bullion coins are typically available in various weights, usually multiples or fractions of 1 troy ounce, but some bullion coins are produced in very limited quantities in kilograms or heavier.

  5. Coin base weight - Wikipedia

    en.wikipedia.org/wiki/Coin_base_weight

    The Vienna Coinage Contract of 1857 was intended to further develop the coin base weight and standard of the coin in the direction of the decimal system. Instead of the Cologne Mark, the Zollpfund ("customs pound") of the German Customs Union (Zollverein) of 500 grams was now set as the coin base weight. [2]

  6. Coin collecting - Wikipedia

    en.wikipedia.org/wiki/Coin_collecting

    Coin hoarders are similar to investors in the sense that they accumulate coins for potential long-term profit. However, they typically do not take into account aesthetic considerations. [21] This is most common with coins whose metal value exceeds their spending value. [22] Modern-day coins are a popular and important part of coin collecting.

  7. Cologne mark - Wikipedia

    en.wikipedia.org/wiki/Cologne_mark

    The Cologne mark is an obsolete unit of weight (or mass) equivalent to 233.856 grams (about 3,609 grains).The Cologne mark was in use from the 11th century onward. It came to be used as the base unit for a number of currency standards, including the Lübeck monetary system, which was important in northern Europe in the late Middle Ages, and the coinage systems of the Holy Roman Empire, most ...

  8. 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. Several grading systems have been ...

  9. Talk:4711 - Wikipedia

    en.wikipedia.org/wiki/Talk:4711

    The Mulhens building on "Glockengasse", where "Eau de Cologne" was produced, received the housenumber 4711. In 1875 this number became the registered trademark for the international brand 4711 ORIGINAL EAU DE COLOGNE. 4711 Eau de Cologne. Citrus with traces of rosemary and lavender, a spicy etheral scent for both men and women.