Crowns
In rather the same way as Beeayeate I inherited a mess kit jacket from my FiL. As he'd been commissioned prior to WW2 the buttons had been well polished by a succession of batmen over the years. Most of the buttons were well worn but I'm sure the crowns were different from those on my first No5 (vintage 1963). Once or twice various PMCs had a little dig about "incorrect" dress but it's amazing what you can ignore if you put your mind to it.
The Ancient Mariner