No one was, in fact, injured in a fire which destroyed an eastern Clarion Clarion County home, this week.     The State Police say this blaze leveled the residence of Andrew Womeldorf the third, which was located along Forest Drive, in Limestone Township.     The State Police Fire Marshall and the Limestone Fire Company are investigating this incident.     But, they have yet to make a determination on the cause or origin of the flames.     The State Police are asking anyone with any information on this incident to contact them.     Police note the property owner was not at his place when the blaze began.     State Police add that the monetary loss has been estimated at 300-Thousand Dollars.     It was shortly after 7:30 Tuesday morning when Limestone fire crews were first called to the scene.     And, they remained at the location for seven hours.     At one point or another, five local fire companies aided at the scene.