The RN number on the label on these panties indicates they were made by the Vesta Corset Company, located in McGraw, New York. Vesta was active in the early and mid 1900’s but I don’t know if they are still in business. The material is nylon tricot, with elastic waist and legbands. My guess is that the 44-46 on the label is a size indication, maybe hip size? If so, they would fit pretty snugly on that size hip. Are these panties made to wear under a corset? If anyone knows anything about the Vesta Corset Company or these panties, please let me know in the comments.