import cadquery as cq
w0=cq.Workplane('XY',origin=(0,0,48))
r=w0.sketch().arc((-49,-11),(-43,-25),(-33,-37)).segment((-23,-37)).segment((-23,-41)).segment((-29,-41)).arc((42,27),(-49,-10)).segment((-49,-6)).segment((-44,-6)).segment((-44,-12)).close().assemble().finalize().extrude(-96)