Mid Century Spring Switzerland Stainless Steel Individual Pans Set of 4

This is a set of four mid century stainless steel individual made by Spring of Switzerland. Im unsure of the exact purpose for these pans, perhaps au gratin?. All pieces are marked Spring Inox 18/8 Made in Switzerland 71. Each is made in an oval form with a turned stainless steel handle. Each measures 4 1/4 by 6 3/4 across the top, exclusive of the handle. All are in excellent condition with barely any signs of use even though these are pre-owned. Excellent Swiss quality!