A couple mechanical pencils circa 1920.
On top is an English, silver plated pencil. The mechanism is actually patented. The mechanism features an outer shell that extends the lead by pulling the shell towards the tip. Reversing the action allows the lead to be pushed manually back into the body.
Bottom piece is a French, black hard rubber pencil. It features some very nice knurling and chasing. The mechanism is a twist to propel/repel system.
Each pencil is just under 5 inches long.