This free pattern originally published in:
Spool Cotton #98, The Learn How Book 
Cast on a number of sts divisible by 4. 1st and 2nd rows: * K 2, p 2, repeat from * across. 3rd row: K 1, * p 2, k 2, repeat from * across, ending row with k 1.
4th row: P 1, * k 2, p 2, repeat from * across, ending row with p 1. 5th and 6th rows: * P 2, k 2, repeat from * across. 7th row: P 1, * k 2, p 2, repeat from * across, ending row with p 1. 8th row: K 1, * p 2, k 2, repeat from * across, ending row with k 1. Repeat these 8 rows.
Crochet Patterns: