Planejammer: The Seven Stars
Starwheels of The Spheres
+ 1, 1d10 + 1 20/x3, r50
Made of Oeridian Bronzewood and Mithril these two matched pistols have the maps of two spheres inlaid in the handles. One of the spheres represented is always Greyspace, the other one varies pair by pair.
The pair found by Oswald Lethbridge Smythe-Carruthers has a map of Greatspace on the off hand gun.