1966 third edition; Winchester Western Press; large hardbound; very good condition with unmarked pages; slipcase good with minor edge wear and tear (pic); spine lettering is somewhat faded.
 
from Preface -
... Through the years, this vital and authentic handbook has served as a storehouse of practical reference for Winchester salesmen, design engineers, researchers, gun experts - in short, everyone who looked for specifications, descriptions and historical facts about Winchester firearms...