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Posted 02/23/2016 4:55 pm
In 2001 or 2002 they also added additional riddlers to sort out misstruck pieces and clips so after that point many fewer are seen. Also around that time they switched from vertically string presses to horizonal strike Schuller presses. On a vertical striking press if a coin is not properly seated in the collar it still lays on top of the collar and adn can create an off-center strike. But in a horiontally striking press if the planchet isn't in the collar it falls out of the press. the only way to create an off-center is if the dies come together while the planchet happens to be falling past.
