Earl Seibert broke into the NHL in 1931 with the New York Rangers and helped them to the 1932 Stanley Cup. When he was traded to the Chicago Blackhawks, he quickly became one of the best defensemen of his era. Most considered Seibert second only to the immortal Eddie Shore in killing penalties and rugged play. He was the best shot-blocker in the league and was a good puckhandler. Seibert was also the first NHL player to regularly wear a helmet. Unfortunately, he is also remembered for his involvement in a 1937 accident when opposing player Howie Morenz broke his leg and later died. An NHL All Star from 1935 to 1944, Seibert was elected to the Hockey Hall of Fame in 1963. Upon his election, he and his father Oliver, who was elected in 1961, became the first father-son Hockey Hall of Fame players. The Lowe & Campbell manufacturers tag is on the inside bottom left of the size 44 wool sweater. On the front and back of the jersey is the player number "17" in black silk version of tackle twill on a red felt background. On the left sleeve is a chain-stitched embroidered Blackhawks team logo Indian Head patch. The sweater is in overall good condition. There is a team repair near the right shoulder, sweat staining on front, back and sleeves. There are numerous small holes throughout the sweater possibly due to poor storage. This "Indian Head" style of sweater is very rare, and coupled with the Hall of Fame player, makes this a truly unique find for the hockey collector.