Go ahead, spill the wine! - red silk moiré dinner gown, American, circa 1837.

 

I agree with the Met's conclusion as to when and where this garment would have been worn: "During the nineteenth century, women's periodicals specified the types of dress appropriate for the variety of evening activities. In 1832, The Ladies' Cabinet alerted its readers, 'Moiré is coming much into favour for dinners of ceremony or evening parties.' The modest neckline, long sleeves, and subtle moiré textile suggest that this is a dinner or evening party dress."