Made in the likeness of the Labatt Mini Stanley Cups, the Seattle Metropolitans was not originally made as part of the set. The Mets hold the distinction of being the first US team to win the Stanley Cup in 1917.
Fun fact: Seattle also competed for the Cup in 1919 and 1920. In 1917, as a member of the Pacific Coast Hockey Association and challenging for the Cup, the rules foe the final were altered. Games 1 and 3 were under PCHA rules (7 players on ice per side, forward pass in neutral zone). Game 1 was won by Montreal. Games 2, 3 and 4 (2 and 4 under NHA rules (6 players per side and no forward pass) were all won by Seattle.