Scottish League Champions

What was the longest period that both Celtic FC and Rangers FC went without a Scottish League Title win?

Three Seasons: 1982-83 (Dundee United Champions), 1983-84 (Aberdeen Champions) and 1984-85 (Aberdeen Champions).
Scottish Football Champions
Scottish Top Flight Champions Playing Kits 1975-76 to 1997-98

Football Quiz Questions

Scottish League ChampionsFootball Trivia