VINTAGE MEDIUM T. Dalton U.S.A. 1980 Lake Placid Olympic Ski Sweater RARE!
1980 was the year the US beat Russia in Hockey. You may find several hockey sweaters form the same manufacturer, but I have not seen another one of these.

CHEST = 22inch
FRONT LENGTH = 28inch
BACK LENGTH = 28inch
SLEEVE = 17inch from pit to cuff

Lake Placid Winter Olympics 1980 Ski Sweater. From the Miracle on Ice Olympic year.
Look CAREFULLY at pictures. Item is used and has signs of wear. There is a small wear spot on the back.
Included in the pictures is a closeup of imperfection. 
Thanks for looking!