Gunship 2011-09-20. An old and much modified vessel, but little is known of its history.
Bristlecone was approximately six hundred years old when it entered the story. The ship was teraport-equipped, but until it was acquired by the Toughs, it had only been used in the Celeschul system. The AI has the quirk of tracking the genealogy and progeny of everyone that has ever traveled within its hull (which Para Ventura refers to as "number 98 in the Ferro-Swedin catalog") 2011-10-30.
Book 12: Force Multiplication. Spotted at the entrance to Beggar Bay on Haven Hive by Kathryn Flinders in 2011-05-31 File:Http://static.schlockmercenary.com/comics/schlock20111030-b.jpg?1320034974
Other notable appearances
[This is for specific vehicles that do not make regular appearances. For ships belonging to the Toughs or other vehicles that make frequent appearances, remove this sub-section.]
[This space is reserved exclusively for Howard!] [see Howard's comment in Speculation section below]
The Bristlecone seems to use a chemical propulsion system as it emits orange exhaust. 2011-10-23
(Howard here: that orange exhaust is an artifact of the colorist's. Bristlecone uses the reactionless annie-plant drive, just like most everything else in the Schlockiverse.)