A short video showing basic operations at the Royal Mint in the United Kingdom. Interesting to see some of the machinery and procedures they use to keep mint errors from being made. Here is a link to the Royal Mint's website: http://www.royalmint.com
Note in the video
1.The paper showing what kind of coins are being struck by the press.
2.Visual inspection of the coins by the press operator (looking for die varieties, primarily, such as cuds, die chips, etc.)
3.The use of metal tote bins to move planchets to the minting press. This is a good way for off-metals to occur since if the bins are used for other series of planchets, a leftover planchet might be fed into a press striking a different coin type.