import cadquery as cq
w0=cq.Workplane('YZ',origin=(-39,0,0))
w1=cq.Workplane('XY',origin=(0,0,-36))
r=w0.sketch().segment((-75,20),(-28,7)).segment((-18,41)).segment((-65,55)).close().assemble().reset().face(w0.sketch().segment((0,-55),(97,-55)).segment((97,39)).segment((91,39)).arc((57,-2),(23,39)).segment((22,39)).segment((0,39)).close().assemble()).finalize().extrude(-61).union(w1.sketch().arc((7,-12),(70,-92),(46,8)).arc((17,16),(7,-12)).assemble().finalize().extrude(67))