Butterick 6596 Angel, Clown, Choir Costumes Halloween Patterns Complete Size 10-12 Bust 30 Vintage 1954

Butterick 6596 Angel, clown, choir costumes Halloween Patterns Complete Vintage 1954

Cut but complete to the best of my knowledge (All 15 pieces are accounted for) Includes pattern and instructions and 5 bonus pattern pieces of the same number one has original vintage newspaper pined on the pattern.

What I think happened Butterick 6596:
Because the pattern only uses 15 pieces and I somehow had 20, I made sure the pieces all belonged to Butterick 6596. They did.
Next step was to make sure I had the right pieces (number 1 through 15). I did!! I even had duplicates of a few of the pieces. 
I think this pattern was combined with another version of the pattern in order to change the size. (This pattern in one Size 10-12 or Bust 30) I also think that's why there is newspaper pinned on the side of one of the pattern pieces. 

So, in conclusion: The pattern was joined partially with another version in order to make the pattern size bigger!

Or at least that's my best guess. I have no real way of knowing though as there are no written documents about the original owner of this pattern, and I wasn't around in 1954 working on it with them...

Pattern sleeve is pretty beat up, but pattern itself is in good condition. Will be sending pattern is protective plastic sleeve.

Year: 1954
Size: Size 10-12 or Bust 30