import cadquery as cq
w0=cq.Workplane('YZ',origin=(36,0,0))
r=w0.sketch().segment((-100,-3),(-52,-3)).segment((-52,-18)).segment((-35,-18)).segment((-35,-3)).segment((13,-3)).segment((13,75)).segment((-35,75)).segment((-35,91)).segment((-52,91)).segment((-52,75)).segment((-100,75)).close().assemble().finalize().extrude(-72).union(w0.sketch().segment((6,31),(15,11)).arc((6,-41),(51,-71)).segment((60,-91)).segment((97,-75)).segment((88,-54)).arc((96,-2),(51,27)).segment((42,48)).close().assemble().push([(51,-22)]).circle(30,mode='s').finalize().extrude(-60))