Futures Large Harvests Pressure Coffee In London, U.S. By REUTERS  Posted 11/05/2012 05:27 PM ET Coffee dropped Monday, with Liffe robustas falling to an eight-month low while ICE arabica coffee reached a 4-1/2-month low, as growing supply takes a bite out of prices. January robusta coffee futures dropped $24 to $1,952 a metric ton, after touching the…