Taken from Sublime Books - 634 - The Sixth Little Sublime Hand Knit Book: A nautical inspired children's cardigan adorned with cables and large buttons!
This pattern is in Sublime Books - 634 - The Sixth Little Sublime Hand Knit Book, page 9.
Size US 6 straights, US 3 straights, 4 buttons, and stitch holder are required but not included.