Occasionally I come across a pattern where the seamstress has tucked in clippings of similar styles. This tells a story we can relate to, where we see a dress in a magazine or newspaper, and search through patterns to look for something as close as possible.
In this example, the seamstress had clipped the following dresses:
Vintage 1972 Butterick 6846 (Misses' Dress, Tunic and Pants):
Pretty close, don't you think?