import cadquery as cq
w0=cq.Workplane('XY',origin=(0,0,14))
r=w0.sketch().arc((-25,-20),(-23,-24),(-22,-28)).segment((-22,14)).segment((48,14)).arc((36,25),(20,31)).arc((-39,38),(-25,-20)).assemble().reset().face(w0.sketch().arc((-19,-32),(14,-50),(48,-32)).close().assemble()).finalize().extrude(-29)