Hardly a bare head to be seen as Billy the white police horse helps hold back the crowd spilling on to the pitch at the 1923 FA Cup final.
“Look at a photograph of the crowd at the 1923 FA Cup final and pretty much everybody is wearing a hat. Fast-forward a quarter of a century and a rough estimate would be that a little under half the crowd at the 1948 final are similarly clad. Go forward another 25 years to 1973 and although Bob Stokoe, the Sunderland manager, topped off his tracksuit-and-mac look with a trilby, almost nobody in the stands at Wembley has their head covered. …”
Guardian – Jonathan Wilson