Coin "Tunnel construction"

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Строительство тоннеля

Name Tunnel construction
Presented by Münze Österreich AG – Austrian Mint
Nominal value 25 euro
Metal Silver-Niobium
Weight 16,50 g
Diameter 34,00 mm
Thickness 2,4 mm
Mintage 65000 pcs.
Production quality Special uncirculated
Description of obverse and reverse The obverse of the coin a present-day tunnel boring machine is depicted on the ice-blue niobium core. Its rotating motion is symbolized by the three arrows, which go up and around, from right to left – the outer edge of the tunneling bore. The twinned set of three straight lines, located in the top part of this design field, is a schematic representation of the air access tunnels that must be part of a tunnel’s overall design. The obverse’s outer silver ring shows the mountains through which the machine pierces. Also located on this side of the coin is the country of issue, «Republik Oesterreich», Republic of Austria, the face value of 25 euros and the year of issue 2013. The coin’s reverse makes excellent use of the niobium core to depict a twinned road tunnel entrance, similar to the many that dot the Austrian and Alpine landscapes. In the silver ring there is a depiction of a tunnel worker, wearing working clothes that were common in the late 19th and early 20th centuries, using a pneumatic drill to loosen rock. The word «Tunnelbau» (tunnel construction) is located in the lower portion of the outer silver ring. Both sides of the coin were designed and engraved by Mint engraver Mr. Herbert Waehner.
A brief annotation The «New Austrian Tunneling Method», (or NATM) which began in 1957. Engineers now continuously monitor the rock masses as the boring machine passes through the various masses of rocks. Depending on how the rock masses react as the tunnel is being created, adjustments will be made to the drilling so that that stress and load factor of the rock masses become part of the finished engineered design. Thereby using strength of the surrounding rock to reinforce the tunnel, and complemented by the supports added to hold up areas of the rock load.
Designer Herbert Wähner
Producer Münze Österreich AG – Austrian Mint

0
Сергей
Если бы не ниобий в серебре, поставил бы еще меньше оценку. Слишком всего намешано, впечатление экспрессии в век минимализма угнетает, не слишком удачное решение.
0
Александр Воропаев
Согласен с Сергеем. Оригинальность только в использовании биметалла в таком сочетании.
0
Николай Чудин
цвет отличный, без него оценка была бы намного ниже,но в этом исполнении очень нравится!
0
Дмитрий Максимов
Монета отражает суть процесса прокладки тоннеля, а сочетание серебра с ниобием делает ее более привлекательной.
0
Владимир Борисов
недавно знакомый купил всю серию этих монет, в упаковке с сертификатами, очень понравились)
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