Faultfree Perfect Squared Klein Bottles (FPSKBs); Order 4

There are 2 known Faultfree Perfect Squared Klein Bottles (FPSKBs) of order 4. Each Klein bottle dissection can be extended to a tessellation of the plane by reflection and translation of the gluing rectangle, links are provided for each of these.

4: 5√2 x 3√2 A; as a planar tessellation





4: 6√2 x 2.5√2 A; as a planar tessellation