From book All-Time Great Afghans from McCall’s Needlework and Crafts; the pattern is named Color-Chrome Narrow Steps

From the magazine:

Single crochet a narrow step pattern, with a double crochet overlay. When working from end to end, leave excess for long self-fringe. Afghan measures 46” x 64”

Pattern calls for a total of 71 oz. of yarn:
7 oz: Black, Eggshell
4 oz: Bright Pink, Tangerine, Coffee, Lavender, Jockey Red, Lilac, Emerald, Yellow, Pink
3.5 oz: Pantile Brown, Olympic Blue, Bisque, Vivid Jade, Robin Blue, Light Brown