Read all about the Grand Numismatic Alliance
Started by andyg, March 18, 2014, 11:47:34 PM
0 Members and 1 Guest are viewing this topic.
Quote from: Pabitra on April 01, 2016, 11:40:44 AMI remember one such case was introduction of 10 Rupees bimetallic coins in India about 10-12 yea s back. The mint started making them but Ministry of Finance had some internal bureaucratic delays. It was only in the next year, the green signal was given. It was then that Reserve Bank of India issued a press release. As per law in India, the press release marks the beginning of issue of a legal tender.Therefore, in numismatic circles, the coins minted with previous year dates were declared patterns.
Quote from: Pabitra on April 01, 2016, 11:40:44 AMThe coins need not wait for vending machine industry.EU has coins of 1, 2 and 5 Eurocents, which do not get accepted by most of the vending machines.
Quote from: Pabitra on April 05, 2016, 04:13:14 PMWhat happened to micro engraving on the inside edge of the polygonal coin sides which were to ensure that it is most secure coin?
Quote from: Niels on April 05, 2016, 04:22:44 PMIndeed interesting to see that the micro engraving has been left out, well spotted! Though it was not only the micro-engraving that made the coin the most secure coin in the world. Micro engraving has already been used on circulating coins of another country (Aruba) for the last decade. It was mainly the combination of security features that made it the most secure coin in the world.
Quote from: hertfordian on April 05, 2016, 06:16:22 PMI'm wondering if the micro engraving may still be there but that the edges are more "vertical" than they were originally intended to be.If you look at the large photos that have now been added to this post, it *does* look like there is some sort of dots on the inside of the rim and I'm wondering if this may be lettering.What do others think?Ian
Quote from: Niels on March 24, 2016, 07:39:13 PMThe new 1 pound coins consist of several layers of metal mixed with luminescent particles, so that they can be detected for security purpose.