Loggerhead Micro (Silver) The Loggerhead Turtle series of geocoins is issued by geocachers Mr. & Mrs. Loggerhead from South Carolina. Size: 22 x 25 mm | Weight: 7.1 g on Monday, 10 July 2006. Posted in ALL Animals, GEOCOINS, Personal, Micro, Trackable, NON-Round, Fish / Sea, Reptiles < Prev Next > Related Geocoins Loggerhead BabyLoggerhead Micro (Copper)Loggerhead ThanksgivingLoggerhead ChristmasLoggerhead Old Baldy