The Royal Dutch Mint, commissioned by the Ministry of Finance, has
issued another group of coins in the series honoring Dutch UNESCO
sites, the design for this group depicting the historical Defense Line
These final Dutch coins of 2017 are also the first commemoratives
with the St. Servais Bridge as the mintmaster’s privy mark of Stephan Satijn.
The Defense Line of Amsterdam is an 84-mile-long line built around
Amsterdam by the Dutch government between 1883 and 1920. In the event
of an attack, the army, government, and king could withdraw within
this perimeter, consisting of 42 forts and a large number of
batteries, dikes, and locks.
During the 19th century, Freedom and Liberty
often took center stage on American money.
Also inside this issue, we look at a long-running series of
auction catalogs that set a high standard for competitors.
The protective border is an impressive hydraulic engineering
system; according to UNESCO, it’s the only example of a fortification
based on controlling water. The forts were designed to act in
conjunction with temporary flooding from polders and a complex system
of canals and locks. Amsterdam would be difficult for an invader to
reach because the land would be under water.
The forts still exist and have functioned variously over the years —
for storage, as homes, or even prisons. The Defense Line of Amsterdam
is on the list of Dutch World Heritage Sites.
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The “wall of water” coin features the Fort on the Ossenmarkt, chosen
because of its complementary round shape in relation to the coin.
Other forts in the defense line are mentioned along the coin’s outer
rim. The circle with the names represents the line itself. The obverse
features King Willem-Alexander.
Three different coins featuring the designs are available, a Proof
.900 fine gold €10 coin, a Proof .925 fine silver €5 coin and a
Brilliant Uncirculated silver-plated copper €5 coin.
The gold €10 coin weighs 6.72 grams, measures 22.5 millimeters in
diameter and has a mintage limit of 1,000 pieces.
The silver €5 coin weighs 15.5 grams, measures 33 millimeters in
diameter and has a mintage limit of 5,500 pieces.
The silver-plated copper €5 coins weigh 10.5 grams and measure 29
millimeters in diameter. The coin is mounted in a descriptive card and
has a mintage limit of 15,000 pieces.
The distributor Coin & Currency Institute offers the coins to
collectors in the United States. The gold coin retails for $575 and
the silver coin costs $73.75. The silver-plated copper coin is priced
at $22.50. Shipping costs $5.75 per order.
For more information on the coins or to order, visit the