The Camel Pen company put itself on the map with a pen that "made its own ink" by just adding water. Little known is that the company also produced mechanical pencils, this one in the same pearl/green celluloid used on their pens. And on top of that, it had a perpetual calendar built into the top! The pencil is stamped "Spaulding The Camel Pen Co." These pencils accept standard .046" leads.
