import cadquery as cq
w0=cq.Workplane('ZX',origin=(0,-75,0))
r=w0.sketch().arc((-49,88),(-90,-36),(34,-75)).arc((35,-81),(36,-88)).segment((36,-57)).segment((100,-57)).arc((87,-45),(70,-40)).arc((81,23),(48,78)).segment((-23,40)).close().assemble().finalize().extrude(101).union(w0.sketch().segment((-59,-54),(20,-66)).segment((41,66)).segment((-37,79)).close().assemble().finalize().extrude(150))