Yamato China Japan 4261 Dinner setting

Setting for 6 including 6 large dinner plates, 6 medium dinner plates, 6 side plates, 6 dessert bowls, 6 saucers & 6 teacups. 1 large dinner plate is missing and 1 side plate has a small chip out of the silver rim. All remaining pieces are in excellent condition. LHS pattern of silver and fawn oak leaves with wheat. Silver edging. All pieces have Yamato China Japan printed on the reverse side, however only certain pieces carry the numbers 4261. I am unable to find relevant information about this dinner set. I was hoping to find the pieces I need to complete the set once more, and since my search has been futile thus far, I am now interested in have the dinner set appraised / valued.