How do you know that a memory is being made while it’s being made? And how do you preserve it for posterity in a way that goes beyond a photo album or more currently, a selfie? Perhaps by engaging those involved in a more tangible way, or by preserving something from the goings-on of the day that will instantly remind you of it even 30 years later. Memorabilia are made of these, and worldwide, care is taken — not just by individual collectors but by sporting event organisers, music labels and film industries — to ensure there are enough physical reminders of historic moments for public viewing, and for individual collections.

The Hollywood memorabilia in the auction include original signatures by Leonard Simon Nimoy and William Shatner on a photograph with the actors in their respective character’s costume as Spock and Captain Kirk