The Boston Celtics have long been the NBA’s marquee franchise since being founded back in 1946. The Celtics have dominated the NBA like no other team has been able to do in league history. With 21 conference titles and 17 NBA Championships, the Boston Celtics’ reign as the most storied franchise in the league continues to this day. During the 1950s and 1960s, the Celtics reached a level of dominance that has yet to be duplicated. From 1957 to 1969, Boston won 11 NBA Championships in a span of 13 seasons. Additionally, the Celtics won eight consecutive titles from 1959 to 1966, which is a record that still stands. Because the Celtics are a franchise that represents winning to the maximum, their collectibles and memorabilia are highly sought after by sports collectors and basketball fans everywhere.