The foliate from and ornamentation on this amulet render it typical of Jewish Persian amulets.
Intended for the women in childbirth , the Hebrew inscriptions is taken from Psalms 121:1-8 and also includes the name “Jochebed”, the mother of Moses and Aeron , who was known for her easy deliveries.
Amulets protected the wearer , his family and possessions from natural disater , spells and evil spirit.
Some served to cure diseases or barrenness.
Others guarded the wearer in his travels , ensured blessings and success , or aroused goodwill or love.
the power of amulets lay in the names and formulas of the Divine Name inscribed on them. 
Then names were written in com- binations , abbreviations , codes or acrostics of biblical verses.
For extra protection , the name of the owner was sometimes added.