writing instruments 
The first true writing instruments were made by the Sumerians in Mesopotamia nearly 5,000 years ago.
Instrument that is made up of a slender tube containing a fine piece of lead; pressing the thrust button moves the lead forward.
Instrument with a metal nib that is attached to a body containing an ink reservoir, usually in the form of a cartridge.
Opening through which air enters the pen to maintain atmospheric pressure.
Part that supports the nib and contains the reservoir that supplies the ink.
Screw end that covers the nib when the pen is not in use.
Curved writing point fitted with a device to supply ink.
Bevel-tipped color felt pen of variable size.
Writing instrument made up of a casing of soft wood around a graphite lead; it can be sharpened easily.