import cadquery as cq
w0=cq.Workplane('XY',origin=(0,0,27))
r=w0.sketch().segment((-28,30),(-23,30)).arc((-38,1),(-12,-18)).arc((25,-47),(22,0)).arc((15,-2),(9,-2)).arc((8,18),(-8,30)).arc((7,42),(25,38)).segment((25,50)).segment((-28,50)).close().assemble().push([(12.5,47)]).rect(3,4,mode='s').finalize().extrude(-54)