Synchronised stamping, swaying and sitting tests safety of new Wembley Stadium.
Item title reads - A practical test. 1,250 men used to test stability of new stadium. Wembley, Middlesex (now Greater London).
L/S as the men all walk along and line up in the stands, L/S as they all sit down together and then all stand up in unison. They sway from side to side and stamp their feet slowly then faster, as well as cheering and waving.