Errata
Under Crown Shaping, Round 8 should read as follows:
Round 8: * k1, k2tog * repeat to end of round => 14 (16) stitches remaining

This pattern includes both a worsted weight and DK weight version. Gauge information above is for the DK version.

Also have listed a 2nd version using worsted weight yarn:
20 stitches = 4 inches in Stocking stitch pattern
Head Circumference is 11.25 inches