S. Mordan & Co. – Ivory Double – Slider & Rule

Mordan double slider in ivory. Very rare for several reasons : no damage to ivory, it has two pencil barrels, one side has a 3″ ruler imprinted on the barrel. There is no damage on this pencil. The ivory has no cracks at all but has yellowed slightly in a couple of spots. Mechanisms work fine. Barrel is stamped “S. Mordan & Co.”