an enriched uranium rod [1.0kg]

You take a careful look at the enriched uranium rod...
A very dense and heavy dark grey rod.  Just looking at it makes your eyeballs tingle.
It weighs 1 kg.  It is a room hazardous material.  You have no idea what it might be worth.


a shielded pneumatic motor [12.4kg]

A complicated assembly of valves and pistons, mounted in a housing of hardened matte black ceramic.
It weighs 12 kg.  It is a part.  You're pretty sure it's worthless on the market.


 a piece of hardened ceramic casing [6.2kg]

A large curved plate of matte black ceramic, treated with some unknown compound and extremely dense.
It weighs 6 kg.  It is a precious material.  You're pretty sure it's worthless on the market.


a TORY-IIIC navigation module [9.2kg]

A heavy square of hardened matte black ceramic with various ports for electronic connections. A small LCD screen on one surface displays rapidly scrolling numerals and text.
It weighs 9 kg.  It is a electronic component.  You're pretty sure it's worthless on the market.