import cadquery as cq
w0=cq.Workplane('YZ',origin=(-3,0,0))
r=w0.sketch().segment((-47,-100),(42,-100)).arc((39,-76),(53,-55)).segment((53,18)).segment((14,18)).arc((-13,28),(-40,18)).segment((-47,18)).segment((-47,6)).arc((-52,-9),(-47,-25)).close().assemble().finalize().extrude(-28).union(w0.sketch().segment((-47,86),(-46,83)).arc((-47,39),(-8,21)).segment((-6,19)).segment((18,33)).segment((16,35)).arc((19,80),(-22,97)).segment((-23,100)).close().assemble().finalize().extrude(34))