I think it’s silk with some kind of sheer over it with beads. It’s not in the best condition. Thank you for your help.
It looks like a Victorian mourning dress to me. Since the silk is shattered I would list as Study Piece if you are going to try to sell. It may *not* be one for mourning that's just my best opinion. I would still date 1880s/90s.
The high waist, slim skirt, over dress, meandering beadwork pattern, and guipure lace are all typical of c. 1911-1913. The beadwork isn't done very well - I wonder if it was a mourning dress that was then decorated with black beadwork to make it more suitable for half mourning...
Yes, this was bothering me all morning. As I initially thought it was 1890s I agree with the others...that cut is Titanic era...1910-1915 would be a better date.