![Jen on Twitter: "Vladislav Tretiak introduced the helmet-cage mask hybrid to North America during the 1972 Summit Series. https://t.co/DzigT5aHHD" / Twitter Jen on Twitter: "Vladislav Tretiak introduced the helmet-cage mask hybrid to North America during the 1972 Summit Series. https://t.co/DzigT5aHHD" / Twitter](https://pbs.twimg.com/media/CS0cxYgWEAAThHq.jpg)
Jen on Twitter: "Vladislav Tretiak introduced the helmet-cage mask hybrid to North America during the 1972 Summit Series. https://t.co/DzigT5aHHD" / Twitter
![Vladislav Tretiak on bench of the Soviet Union at the World championship in 1972 – Sport Collections Vladislav Tretiak on bench of the Soviet Union at the World championship in 1972 – Sport Collections](https://www.sportcollections.net/wp-content/uploads/2020/01/Image-2118-A41.jpg)
Vladislav Tretiak on bench of the Soviet Union at the World championship in 1972 – Sport Collections
![Amazon.com: 2001-02 Between the Pipes #133 Vladislav Tretiak NM-MT Official ITG In the Game NHL Hockey Card : Collectibles & Fine Art Amazon.com: 2001-02 Between the Pipes #133 Vladislav Tretiak NM-MT Official ITG In the Game NHL Hockey Card : Collectibles & Fine Art](https://m.media-amazon.com/images/I/614yWr0nLrL._UF1000,1000_QL80_.jpg)
Amazon.com: 2001-02 Between the Pipes #133 Vladislav Tretiak NM-MT Official ITG In the Game NHL Hockey Card : Collectibles & Fine Art
![Lot Detail - Vladislav Tretiak Signed Hockey School Jersey Plus Vintage Jofa Helmets (2) and Montreal Model Goal Stick Lot Detail - Vladislav Tretiak Signed Hockey School Jersey Plus Vintage Jofa Helmets (2) and Montreal Model Goal Stick](http://www.classicauctions.net/ItemImages/000154/154846a_lg.jpeg)