Wish-fulfilling jewels crown the handle of this bronze ritual implement, a vajra bell that would have been rung during esoteric Buddhist practice and ceremonially placed on an altar prepared for ritual. The complete set encompasses four other bells, their handles forming a single-pronged vajra, a three-pronged vajra, a five-pronged vajra, and a treasure stupa. The bell’s handle has eight oval motifs with a second oval inscribed inside known as “demon eyes” (kimoku) in Japanese. The main body of the bell is conspicuously bereft of decoration, possibly indicating that the set was a copy of earlier ritual implements with storied histories. 
Object label 

This is a vajra bell with sacred jewels (Skt. cintāmaṇi; J. hōju) at the end of its handle. With large ovals forming the demon-eye motif at the bulging section of the handle and no decoration on the bell’s body, it is referred to as a “Son’eiji style” bell for its resemblance to a similar bell now at that temple. This bell was possibly modeled after various storied bells brought back from China.
 
MIMOTO ShusakuEnglish by Mary Lewine 
Buddhist Art Paradise: Jewels of the Nara National Museum. Nara National Museum, 2021.7, p.340, no.126.