The King expressed his sorrow today/yesterday that the Kenyan safari lodge where his mother was staying when she became Queen is no longer there to see.
The Shropshire class had been inspired to send the illustrated underwear to the royal household by an updated book as part of a tradition which started with Queen Elizabeth II.
Children at a primary school who sent hand-decorated underwear to King Charles for his coronation celebrations were "jumping up and down" with excitement when they received a letter back from Buckingham Palace.