I think this lamb probably died about two-thirds of the way through gestation, several weeks ago.  The skin is leathery, the eyes reabsorbed, there's a little hair or wool in some places and the feet are very well formed.  The lamb is a ewe.  There are obvious lumps where the teeth have formed correctly in the upper jaw, but no sign of lower jaw bones nor a tongue.  Externally the lamb appeared otherwise normal.  I didn't cut it open to see what else might have been missing inside.  It had only the slight smell of blood products as they begin to decay after birth, no worse than the ordinary lochial discharge of any recently lambed ewe - i.e. the bloody dribbles which come out of a newly lambed ewe over the following week or so.