The lack of belt clips could be that they were hard to come by, or the guard commander could not afford to have them fitted, or there was not enough time after he had been joed.
Just been joed for a Royal Guard of Honour? I think not! The sword hooks are brass curtain hooks sewn into the seam of the No 1 tunic. But as it was in New Zealand, brass curtain hooks are probably still on the 'rationed' list
Anyway, a bit of levity...