International ladies I need your help please!

So some back story, my grandma when she retired traveled Europe before she started to watch me as a child. She brought back a dress and matching socks for me. Unfortunately older cousins got a hold of it for their daughters (there’s a 10 year age gap from me to my cousins oldest daughter) and now no one can find the dress. Can anyone tell me where she could have possible bought it as she cannot remember and I would like to try an find one for my daughter to do a replica photo in. The dress is from the early 90s and my grandma just turned 92.