Royal Mint resume minting their own supplementary tokens. In 1672 the Royal Mint finally took over the production of copper coinage. Prior to the outbreak of the English Civil War, England signed a treaty in 1630 with Spain which ensured a steady supply of silver bullion to the Tower mint. Additional branch mints to aid the one in London were set up including one at Aberystwyth Castle, in Wales. In 1642 parliament seized control of the Tower mint and after Charles I tried to arrest the Five Members he was forced to flee London, establishing at least 16 emergency mints across the
Royal Canadian Mint allowed it to refine silver. The silver is first upgraded in an oxygen converter and then refined by electrolysis. It wasn’t until the Great Depression that the Ottawa Mint negotiated its independence from the British Royal Mint. In 1931, the Ottawa Mint was renamed the Royal Canadian Mint and began reporting solely to the Department of Finance. Although the Mint continued to rely on the Royal Mint to produce the master tools required for the creation of its punches and dies, the Mint was finally under Canadian control. In 1969, the Government of Canada reorganized the Mint as a Crown