A potato-shaped asteroid after the collision with a black hole. Or so.
vertices: 87
faces: 58
edges: 145
genus: 1
characteristic polynomial:
(-2836 - 827961x + 13431718x2 + ... + 10092x83 - 145x85 + x87)
dual's characteristic polynomial:
(-5 + x) (-357491 - 605791 x + ... again quite weird term ... + 5x56 + x57)
chromatic number: 5
lattice group (lossy):
Z(2) × A(290)