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The E-Sylum:  Volume 11, Number 8, February 24, 2008, Article 35

USING COINS AS TIRE GAUGE RARELY ACCURATE

Regarding last week's item from Consumer Reports on using
a coin to gauge tire wear, Dave Lange writes: "Such advice
is so harmful, because no one takes into account how much
the distance from a coin's edge to the top of the president's
head has varied in recent years. Since the 1980s the U. S.
Mint has steadily moved alllegends and devices further from
each coin's borders to reduce die erosion. Using a 1968 cent
to measure a tire's wear will produce a very different result
than using a 2008 cent. The same is true for other
denominations and, as you pointed out, the state quarters
will produce a radically different result, since the head
of Washington was so reduced in size to accommodate text
formerly included on the reverse."

 UPDATE ON USING COINS AS TIRE GAUGE
 esylum_v11n07a35.html

  Wayne Homren, Editor

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