I have an inkling that the signage from these (hopefully rare) times will inevitably do the design museum circuit. They arguably ought to become curriculum the same way that wartime public signage for victory gardens or recruitment has.
Here’s the public transport signage rollout in Sydney:
Not captured: temporary stickers on train carriages with the number of passengers allowed (hand-rendered, real time).
Here’s a bonus shot from Surry Hills Coles:
Are other people recording and saving these bits of design history? How much of the sticker, vinyl, and signage in public spaces today will be chucked into landfill tomorrow?