An Antique Gun

An Antique Gun is a -quality item. It is a reference to an episode (Trash) of the TV show Firefly, in which an exceedingly rare and valuable antique firearm (a Lassiter) is the centre of a planned heist. Judging by the value, the Lasitor is the cheap goblin knock-off.

Source
This item is a rare drop from Strong, Heavy and Sturdy Junkboxes.