In the men's teams, he opened the East hand shown with one spade.
Again, the defense would be limited to one trump trick in the East hand.
There was only one answer: all four missing clubs in the East hand.
Many players would open the East hand with two hearts, not one heart.
In the old days many players would have passed as dealer with that soft East hand.
West was still connected to the East hand in diamonds.
Few players would make that bid, or fail to respond with the East hand.
The first card is already in, let's say, the East hand.
The eight missing diamonds were clearly in the East hand.
It appears to be an effort to reach the East hand in the hope of a club return.