click space bar for effects and turn up sound open your wallet
Post on 19-Dec-2015
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TRANSCRIPT
- Slide 1
- Slide 2
- Click space bar for effects and turn up sound
- Slide 3
- Open your wallet
- Slide 4
- Big bucks in Winnipeg
- Slide 5
- Stampeding coins Pennies begin their life as a roll of core steel fed into a punch press that churns out blank coins After plating, the blanks are dried, polished and inspected before proceeding to the coining press where they are stamped Blanks are next electro- plated with mixture of nickel and copper These blanks are refined by removing rough edges
- Slide 6
- (plus a few)
- Slide 7
- Copper in currency : it goes back a few years
- Slide 8
- Its elementary, my dear
- Slide 9
- And where in the world do we find copper? ( map of world wide copper production 2005)
- Slide 10
- Bibliography