After Bill Struth collected two more domestic doubles in 1950 and 1953, Scot Symon was appointed as Rangers third manager in 1954. Symon continued Struth's success winning six league championships, five Scottish Cups and four League Cups. He also became the second manager to win the domestic treble in season 1963-64.
Symon also took Rangers into the European Cup for the first time in 1956-57 going out on to French team Nice. The following season however saw Rangers suffer their worst ever defeat to their arch rivals Celtic, losing 7-1 in the League Cup final of 1957. They did however reach the semi-finals of the European Cup in 1960 losing eventually to German club Eintracht Frankfurt by a record aggregate 12-4 for a Scottish team. In 1961 Rangers became the first British team to reach a European final when they contested the Cup Winners' Cup final against Italian side Fiorentina, only to lose 4-1 on aggregate. Rangers suffered yet more despair in the final of the same competition in 1967, losing 1-0 after extra time to Bayern Munich.