This style of this pencil dates to 1680. Also called a porta crayon. Five inch brass casing holds a thick sturdy graphite lead that should last a long time but if you run out replacement lead is available. We'll have you journaling again in no time!
See this and other 18th Century writing products in our informational video.
Replacement Lead Large Lead-L
Mechanical Pencil - Short PC-240
Brass Pocket Notebook BP-966