From the Bonhams auction catalog:
A Jeanette MacDonald costume from Bitter SweetMetro-Goldwyn-Mayer, 1940. Short green grosgrain jacket with boned bodice, velvet cross detail on sleeves and pleated cuffs. Bearing a typed label reading “8412” and a bias label inscribed in black ink, “J. Mac Donald / Bittersweet- 1887.” Together with a matching floor-length skirt with two layers, elaborate pleating and bow detail in the back. Interior of the waistband inscribed in black ink, “J. Mac Donald / Bittersweet” and a typed label reading “8412.” Accompanied by a copy of the film. MacDonald wears this dress while speaking to the owner of Schlick’s Cafe, where she is working as a singer.
See the actual dress below!