import cadquery as cq
w0=cq.Workplane('XY',origin=(0,0,57))
r=w0.sketch().segment((-100,-51),(-87,-88)).segment((-64,-79)).segment((-77,-43)).segment((-77,-51)).close().assemble().reset().face(w0.sketch().arc((38,88),(-3,23),(65,-13)).segment((65,21)).segment((75,21)).segment((75,24)).segment((98,22)).arc((93,63),(60,87)).arc((49,83),(38,88)).assemble()).finalize().extrude(-115)