To quote from Lucky's Collectors Guide to 20th Century Yo-Yos, "All Duncan yo-yos marked ‘Tournament Yo-Yo’ are classic tournament shaped. When adults reminisce about their childhood yo-yoing days, this is the yo-yo most commonly described. Duncan produced millions of Tournament yo-yos. Over the decades, several different seals bore the word ‘Tournament’ and most carried the familiar decorative airbrushed paint stripe on both faces."
The first Tournament yo-yo from Duncan was the Big 'G' Gold Seal Tournament, produced throughout the 1930s and ubiquitous on the contest circuit. Following this were the Big 'G' Stamped Seal Tournament, the Big 'G' Yellow Seal Tournament, the Little 'G' Yellow Seal Tournament, and the Little 'G' Stamped Seal Tournament, the latter two more prevalent during the 1940s and 1950s.
There are several seal variations of the '77' Tournament, which was also popular in the 1940-1950 time frame. They all feature a silhouette of Mr. Yo-Yo, but on some he is on a pedestal and others he is not. Likewise, the "Y"s in the word "Yo-Yo" on some 77s are split horizontally and on others they are not. All 77s have a decal seal which is somewhat delicate and tends to crack and peel with age, so it is difficult to find one in good shape.
The Super Tournament was made from the mid-1950s through the early 1960s. It is well-known for being the only jewelled Tournament model that Duncan produced. The Crossed Flags Tournament, was the last wooden Tournament model sold by Duncan. Although production stopped in 1965 when Duncan closed its doors, so many had been manufactured and warehoused that they continued to sell into the early 1970s.
The first pre-Flambeau plastic Tournament was Duncan's first attempt at a plastic yo-yo. Made in the 1950s, it did not perform or sell very well and so had a very short production lifespan. Flambeau produced a plastic Tournament model with the Duncan marque in the 1970s.