Contains a coffee pot 6 small mugs and saucers and a selecion of serving bowls on a lazy susan. Am trying to find out who the maker was and roughly what the value of this would be. When it was made ?

This vase is 7 in. tall and 4.5 in. diameter. Marked S.P.R.C.S.D. (Sioux Pottery, Rapid City South Dakota) & W.LARVIE(The Artist). In excellent condition. No nicks, chips, etc. I beliece that it is a Native American Pottery piece.

main color is green&light green with clusters of grapes in purple. Rim&handles are trimmed in gold.  One mug has broken handle that has been repaired. Inside is all white.