This pattern is called Lacy Lou in Easy Knits for Kids. This name does not appear in the leaflets.

In Easy Knits for Kids the pattern is on Page 34 and is illustrated on page 35.

Measurements
To fit chest
41, 46, 51 cm (16, 18, 20 in)
Length from back neck
24, 27, 29 cm (9½, 10½, 11½ in)
Sleeve seam
14, 15, 15 cm (5½, 6, 6 in)

Each source has a different set of recommended yarns. The following are from the Ladywood pamphlet.

Materials
LADYWOOD DOUBLE KNITTING
Bri-nylon/Acrylic
6, 6, 7 20 grm balls
Acrylic
6, 7, 8 20 grm balls
Shetland Pure Wool
3, 3, 3 50 grm balls
Acrylic Nylon/Wool
3, 3, 3 50 grm balls
Thermal DK
3, 3, 3 50 grm balls
Pure Wool Crepe
3, 4, 4 50 grm balls
Baby Quickerknit Bri-Nylon Acrylic
4, 5, 6 20 grm balls
3 buttons
stitch holders.