This is pattern instructions for a cuff down knee high sock which includes instructions for a regular length sock.
Skill required: chart reading and knowledge of traveling stitches.

Calf Sizes: 12(13,14,15,16,17,18,19,20 inches)/ 30(33,35,38,40.6,43.2,45.7,48.3,50.8 cm) Measured at widest part around calf.
Foot Sizes: 8 (9,10) inches / 20 (22) cm Measured at widest part around ball of foot

This was used as round 4 in Sock Madness.