import cadquery as cq
w0=cq.Workplane('YZ',origin=(24,0,0))
r=w0.sketch().segment((-50,-22),(-29,-30)).segment((-26,-23)).arc((-38,-23),(-47,-14)).close().assemble().reset().face(w0.sketch().arc((-37,10),(-25,9),(-16,1)).segment((-13,8)).segment((-34,17)).close().assemble()).finalize().extrude(-48).union(w0.sketch().segment((4,11),(11,-1)).arc((14,-5),(16,-9)).segment((50,10)).segment((39,30)).close().assemble().finalize().extrude(-2))