Where can you find Marshall Fields' 1948-49 Aunt Holly and Uncle Mistletoe Christmas tree ornaments?

I have Uncle Mistletoe. My mother (who died in 1986) broke Aunt Holly about 1984. They were her favorite ornaments, so it's a good thing she was the one who broke it. Uncle Mistletoe has now been retired to a curio cabinet and is not for sale. It is a treasured family heirloom. P.S. My mother also loved Marshall Fields. Xmas trips there were a highlight of my childhood.