taste setter by sigma. the red shoes

bought at the same garage sale as the other items i have listed.

not sure if it is ceramic? porcelain? or china?

round bowl and lid.

16cm diamater. 11cm tall (with lid)

label on bottom reads, 'taste setter by sigma. all pieces are hand decorted so colour may vary. made in japan'

and impprinted into the bowls base

THE RED SHOES. TASTE SETTER BY SIGMA

it's in mint condition.

i'll be selling it (raising cash for my next plane ticket from UK to aus to visit my only daughter and her newborn baby) so i'd like to get the best price i can for it.

more than grateful for any answers/suggestions on a value, age, and what it is made from.

thanks in advance

jan