Smallsword for I D

[Iliad]

Good Morning/Evening everybody,
I have recently acquired a pair of Smallswords, one of which has engravings which puzzle me. They show a man with shaved head but a coiled pigtail; winged; holding something which may be palm branches; odd trousers; bare feet. Since my enthusiasm exceeds my knowledge I am at a loss to understand this. Can someone enlighten me as to the origin of this Smallsword?
Iliad