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The silver-colored Susan B. Anthony dollar was replaced with gold-colored Sacagawea dollar in 2000 and Presidential Dollars 2007-2016; though the composition changed, the coin's size and weight remain the same. Some variances in coin size and weight occurred over time, especially as the value of silver varied.
Guillotine cutting is the process of producing small rectangular items of fixed dimensions from a given large rectangular sheet, using only guillotine-cuts. A guillotine-cut (also called an edge-to-edge cut ) is a straight bisecting line going from one edge of an existing rectangle to the opposite edge, similarly to a paper guillotine .
The guillotine used in Luxembourg between 1789 and 1821. A guillotine (/ ˈ ɡ ɪ l ə t iː n / GHIL-ə-teen / ˌ ɡ ɪ l ə ˈ t iː n / GHIL-ə-TEEN / ˈ ɡ i j ə t i n / GHEE-yə-teen) [1] is an apparatus designed for efficiently carrying out executions by beheading. The device consists of a tall, upright frame with a weighted and angled ...
90º miter joint (pieces ready to be joined) Miter joint of two pipes A miter joint (mitre in British English) is a joint made by cutting each of two parts to be joined, across the main surface, usually at a 45° angle, to form a corner, usually to form a 90° angle, though it can comprise any angle greater than 0 degrees.
Paper cutters were developed and patented in 1844 by French inventor Guillaume Massiquot. Later, Milton Bradley patented his own version of the paper cutter in 1879. [1] Since the middle of the 19th century, considerable improvements to the paper cutter have been made by Fomm and Krause of Germany, Furnival in England, and Oswego and Seybold in the United States.
A mitre box or miter box (American English) is a wood working appliance used to guide a hand saw for making precise cuts, usually 45° mitre cuts. [ 1 ] [ 2 ] Traditional mitre boxes are simple in construction and made of wood, while adjustable mitre boxes are made of metal and can be adjusted for cutting any angle from 45° to 90°.
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A replica of the Halifax Gibbet on its original site, 2008, with St Mary's Catholic church, Gibbet Street, in the background. The Halifax Gibbet / ˈ h æ l ɪ f æ k s ˈ dʒ ɪ b ɪ t / was an early guillotine used in the town of Halifax, West Yorkshire, England.