import cadquery as cq
w0=cq.Workplane('ZX',origin=(0,-19,0))
r=w0.sketch().arc((30,-50),(37,-36),(30,-21)).segment((30,-28)).arc((33,-35),(30,-43)).close().assemble().finalize().extrude(-20).union(w0.sketch().arc((-24,-6),(-21,-12),(-16,-17)).arc((-15,-18),(-14,-18)).arc((11,-16),(18,7)).segment((18,2)).segment((-1,2)).arc((1,19),(-13,31)).segment((-13,33)).segment((-7,33)).segment((-7,35)).segment((-13,35)).segment((-13,45)).segment((-23,40)).segment((-19,31)).arc((-36,15),(-24,-6)).assemble().reset().face(w0.sketch().segment((13,33),(18,33)).segment((18,23)).segment((29,28)).segment((18,50)).segment((18,35)).segment((13,35)).close().assemble()).finalize().extrude(58))