Again, Isis-Hathor is easily distinguished of Isis from her headdress modius of uraei with or without crown of sun disc and horns1. The sides of the thrones are often decorated with sema taouys or winged deities

Isis-Hathor suckling Horus - Pale green glaze

Pale green glaze
H 7.5, W 2.1, D 4.5
Ptolemaic Period1
Private collection DA

Isis-Hathor suckling Horus - Blue glaze H 5.7, W 1.6

Blue glaze H 5.7, W 1.6
Third Intermediate
Period Dynasty 22
Eton College Museum
#ECM.1532-2010

Isis-Hathor suckling Horus - Blue glaze H 8.6, W 2.3, D 4.0

Blue glaze H 8.6, W 2.3, D 4.0
Third Intermediate Period-
Late Period2 © The Trustees of
the British Museum #EA66632

References

1See the very close MET #26.7.866 parallel with Isis suckling a broken Horus
2Andrews C. Amulets of Ancient Egypt 1994, p. 22 and Fig. 18a