Simplicity 5552 vintage sewing pattern; ©1964. 

Child's and Girl's Nightgown or Pajamas in Two Lengths:

Nightgown and top feature a yoke with a front button closing; garment gathers to yoke. V.'s 1, 2 have collars and long sleeves. Elastic casings form self ruffles, sleeves gather to yoke. V. 1 long nightgown has eyelet edging trim. V. 3 is sleeveless, trimmed with lace edging. V. 2 has daisy medallion trim. V. 2 long pants and V. 3 panties feature elastic casings. 

Girls Size 6:

Breast 24 inches / 61 cm
Waist 22 inches / 56 cm
Hip 26 inches / 66 cm

Pattern is unprinted (perforated with symbols), and is checked complete. Pattern envelope has age yellowing and wear and tear to flap.

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http://allthepreciousthings.com/collections/baby-and-children