import cadquery as cq
w0=cq.Workplane('XY',origin=(0,0,35))
r=w0.sketch().segment((-100,72),(-71,-75)).segment((74,-45)).segment((58,40)).segment((-83,39)).segment((-83,75)).close().assemble().finalize().extrude(-80).union(w0.sketch().segment((-55,-11),(-41,-11)).segment((-41,-22)).segment((17,-22)).segment((17,-11)).segment((100,-11)).segment((100,1)).segment((17,1)).segment((17,49)).segment((-41,49)).segment((-41,1)).segment((-55,1)).close().assemble().push([(-13,-13)]).rect(54,4,mode='s').push([(-13,20.5)]).rect(54,39,mode='s').finalize().extrude(10))