I focused on the sporting aspect of the theme for Sepia Saturday today and found this card showing spectators at Victoria Park, 1961. It doesn't actually say where Victoria Park is, I imagine vast numbers of towns have a Victoria Park, but I'm making a guess at Victoria Park in London's Tower Hamlets based on the fact that many of the cards in this series are of London. You can still see similar informal football matches there.
I did in the end find a card showing a moustache...
These postcards are from English Heritage, created from their range of images showing social history, as well as architectural and industrial heritage.
An entry for this week's Sepia Saturday on the subject of moustaches (for Movember).