Solve times for this jigsaw puzzleShare your solve times with your buddies
When naturally occuring graphite was discovered, chemistry was in its infancy and the substance was thought to be a form of lead. Consequently, it was called plumbago (Latin for "lead ore") . The black core of pencils is still sometimes referred to as "lead," even though it never contained the element lead.
Share this Jigsaw Puzzle
Thu Sunset BikingWed Dalhia Rebeccas WorldTue Bench SeatMon Sailing ShipSun Dolphin BasketballSat Pine BlastFri Ski Run 21More Previous Puzzles