Friday, March 30, 2007

Finland 2 euro 2007 - Rome Treaty

New bimetallic circulating commemorative:

"Rome Treaty"



LINK: Numi
LINK: Euronumis
LINK: European Central Bank
LINK: Bank of Finland
LINK: Mint of Finland

SPECIFICATIONS
External ring: CuNi
Center disc: 3 layers, Ni-Brass, Ni, Ni-brass
Diameter: 25.75 mm
Width: 2.20 mm
Weight: 8.50 g
Mintage: 1,400,000

Thursday, March 29, 2007

Russia 10 roubles 2007 - Regions

The next three coins of this series are:

1.Republic of Bashkortostan
2.Rostov region
3.Novosibirsk region



(information by Jacek Stacel)

The original Coats of Arms:


(taken from: Vector Images)

LINK: Bank of Russia
LINK: Russian Regions

Tuesday, March 27, 2007

Mexico 100 pesos 2007 - Nuevo Leon

New circulating commemorative:

"Mexican States collection 2: NUEVO LEON"

The coin shows the Guadalupe mountain Cerro de la Silla and a detail of the Monterrey Fundidora Park.



The two Nuevo Leon icons:



LINK: Banco de Mexico
LINK: Wikipedia: Cerro de la Silla
LINK: Wikipedia: Fundidora Park

SPECIFICATIONS
Disc composition: Silver 0.925
Ring composition: Aluminium-Bronze
Weight: 33.967 g
Diameter: 39.00 mm
Edge: rifling

Monday, March 19, 2007

Poland 2 zlotys 2007 - Enigma

New circulating commemorative:

"75th Anniversary of Breaking Enigma Codes"



Enigma machines:



In the history of cryptography, Enigma was a cipher machine used to encrypt and decrypt secret messages. More precisely, Enigma was a family of related electro-mechanical rotor machines comprising a variety of different models.

The Enigma was used commercially from the early 1920s on, and was also adopted by the military and governmental services of a number of nations, most famously by Nazi Germany before and during World War II.

The German military model, the Wehrmacht Enigma, is the version most commonly discussed. The machine has gained notoriety because Allied cryptologists were able to decrypt a large number of messages that had been enciphered on the machine.

The works on the Enigma were carried out by three young mathematicians engaged by the Polish counter-intelligence, graduates from Poznan University: Marian Rejewski, Henryk Zygalski and Jerzy Rózycki, who specialised in the encryption theory.
In the 1930s, they developed the mathematical basis of the Enigma and the apparatus for the deduction of the current settings of the machine's rotors and plugs.

In mid-1939 reconstruction and decryption methods were delivered to Britain and France. The intelligence gained through this source was a significant aid to the Allied war effort.

LINK: National Bank of Poland
LINK: Polish State Mint
LINK: Enigma in Wikipedia
LINK: Enigma models and images
LINK: Modern Enigma machines

SPECIFICATIONS
Composition: Nordic gold, CuAl5Zn5Sn1
Weight: 8.15 g
Diameter: 27.00 mm
Mintage: 900,000

Thursday, March 15, 2007

Spain 12 euro 2007

New silver circulating commemorative:

"Rome Treaty"



LINK: Spanish mint

This coin is legal tender only in the Spanish territory.

SPECIFICATIONS
Composition: Ag 0.925
Weight: 18.00 g
Diameter: 33.00 mm
Edge: plain
Mintage: 4,000,000

Thursday, March 8, 2007

Mexico 100 pesos 2007 - Nayarit

New circulating commemorative:

"Mexican States collection 2: NAYARIT"

The coin shows the island of Mexcaltitlan.



The island of Mexcaltitlan:



From Wikipedia: Mexcaltitlan is a small island with a circumference of less than a mile, floating in the swampy lowlands and mangroves off the coast of the Mexican state of Nayarit. It has been thought that it is the Aztlan of the Aztecs, their home city and birthplace from whence they set out to on their pilgrimage that led them to the founding of Tenochtitlan.

LINK: Banco de Mexico

SPECIFICATIONS
Disc composition: Silver 0.925
Ring composition: Aluminium-Bronze
Weight: 33.967 g
Diameter: 39.00 mm
Edge: rifling

Wednesday, March 7, 2007

Poland 2 zlotys 2007 - City of Lomza

New circulating commemorative:

"Polish cities: LOMZA"



LINK: National Bank of Poland
LINK: Polish State Mint
LINK: Polish Cities Coins Program

SPECIFICATIONS
Composition: Nordic gold, CuAl5Zn5Sn1
Weight: 8.15 g
Diameter: 27.00 mm
Mintage: 1,000,000

Monday, March 5, 2007

Thailand 10 baht 2007 - Cavalry Regiment

New circulating bimetallic:

"100th Anniversary of the 1st Cavalry Regiment King's Guard