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 Yellow SpokesWed Tulip OrangeTue Plant with SnailMon Orchid Lady SlipperSun Ben LediSat Butterfly Black BlueFri Macaw BirdMore Previous Puzzles