This is the personal geocoin of The Mighty Shark from Nocton, Lincolnshire, England.
This geocoin shows the geocachers mascot on Side A with name of the geocacher below. Side B shows a man in a boat with shark in the water below which holds the trackable code. The trackable icon is the geocachers mascot.
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References
Icon Figure
The Mighty Shark Geocoin on the Geocaching Forum Website
The Mighty Shark Geocoin on the Kleine Geschichten aus den ersten Geocoinjahren Wesbite
The Mighty Shark Geocoin on The Cachebug Website
Personal Communication with The Mighty Shark