The privy mark is the small Tudor crown behind the king's head. The 2023 mint sets all have the privy mark. The ones that are due to go into circulation, about 600,000 mintage, will not have that privy mark. I want to get a few out of circulation as soon as they appear, before they become all scuffed and scratched. I've yet to see any.
 
	I have noted that the 50p, £1 and £2 coins have turned up on eBay without the marks. I even pulled a £1 coin out of change myself. Still no sightings of the 1p, 5p and 10p coins yet though.