...for the Grays COHP was placed by the prolific cohp'er, Bob Packard. John Roper was the first to do all the Washington counties back in 1994 but Bob was the first to leave a register on a spot that he felt was the HP. See this pic of Klenke's for an idea of where this register is located.
Page Scores range from 0% to 100%. The higher the score, the higher the perceived quality of the image. Score is not a simple average of votes, but takes into account the number of votes and the power of the voters.
For every object, a hit is registered each time the object's main page is viewed. A user's hits are the sum of all the hits on the objects he or she owns.