import cadquery as cq
w0=cq.Workplane('XY',origin=(0,0,-9))
r=w0.sketch().segment((-13,-31),(50,-31)).segment((50,-14)).segment((4,-14)).segment((36,3)).segment((45,3)).segment((45,5)).segment((36,5)).segment((26,23)).segment((4,11)).arc((-47,16),(-13,-22)).close().assemble().finalize().extrude(-9).union(w0.workplane(offset=26/2).moveTo(-22.5,3.5).box(35,35,26))