You have a much earlier box than #7- you have #3. though 4,5 and 6 appear to be something other than the "puzzle" style set, so #7 is the next one after #3.
This shows #3 (left) and #2
While the ruffler is the same, the tucker for #7 is quite different.
The first is in boxes 2 &3, the middle in box 7
