Oh man, I shall always miss seeing the habits of the Daughters of Charity of St. Vincent de Paul with their butterfly-like head covers.
The only way to see that habit is to visit the incorrupt body of St. Catherine Laboure.
I read a book, published in the 1990s, which was in French and about regional folklore. They had a exhibit from a museum, which included a manniquin dressed in the traditional Daughters of Charity habit.
The caption noted that when this was made - in the early 1970s - they had asked the order to donate a "cornette" (headcover) to the museum. But in all France, not one existed. The sisters kindly agreed to make one up - at that time, many sisers still had lived in, and remembered, the traditional style.
The folklore museum commented that the cornette had once been one of the most familiar and characteristic sights in France, yet had vanished so suddenly.