Ravelry download and pattern from Knitting Traditions contains six (6) finished sizes: 22 (24, 26, 28, 30, 32) inches

Pattern includes the following:

• knotted cast-on
  
• circular garter welt
  
• three-stitch seam
  
• plain area
  
• the Snakes and Ladders pattern
  
• underarm gusset
  
• knitted bound-off shoulders (with the ridge outside)
  
• shaped neckline
  
• rolled neckband
  

Knitting Ganseys, published August 1993, contains three (3) finished sizes: 22 (24, 26) inches.

Knitting Ganseys: Revised and Updated, has an adult-sized version of this pattern.