import cadquery as cq
w0=cq.Workplane('XY',origin=(0,0,-46))
r=w0.sketch().segment((-78,-42),(-69,-45)).segment((-67,-39)).arc((-22,-12),(-44,37)).segment((-42,42)).segment((-51,45)).segment((-53,39)).arc((-98,12),(-76,-37)).close().assemble().reset().face(w0.sketch().segment((-75,-34),(-62,9)).segment((-62,-23)).segment((-66,-37)).arc((-24,-11),(-44,34)).segment((-58,-9)).segment((-58,23)).segment((-54,37)).arc((-96,11),(-75,-34)).assemble(),mode='s').finalize().extrude(5).union(w0.workplane(offset=91/2).moveTo(49,15).box(102,20,91))