According to the 1975 book Oriental Cloisonne and Other Enamels by Arthur and Grace Chu,

"'The Eight Happy Opens of Buddhism'represent a mixture of Buddhist and traditional Chinese values. ... when oriental symbols are shown with ribbons attached to them, the ribbons endow the objects with supernatural powers (they also make for a more decorative symbol)."

The umbrella, ceremonial canopy, conch shell, everlasting knot, wheel of law, lotus flower, double fish, covered jar.

The rolled lip of the vase in the picture is more typical of post-1949 work, but the enamels are definitely the old standards, and the finish lacks the perfect pit-less polish of current work.

These symbols appear in the nicer older cloisonne beads.