In the Late Period Isis and Hathor fused into a single deity, Isis-Hathor, the latter being easily distinguished from Isis by her headdress modius of uraei with (see below) or without (see next slide) crown of sun disc and horns1
Blue/black glaze
H 9.0, W 2.1 Late Period
Eton College Museum
#ECM.1537-2010
Green glaze H 10.0
Ptolemaic Period
Christie’s Antiquities Sale 2490
lot 49, 7 December 2011
Note
1Isis is sometimes depicted with horns and sun disc, but not supported by a modius of uraei