This is how Labour politicians signed their letters to Prince Charles

The government has released a second cache of previously secret correspondence between Prince Charles and Labour government ministers.

Several letters were released last month after the Guardian won a decade-long legal battle to get the “black spider memos” - so called because of the Prince of Wales’s handwriting - published.

The letters go into detail about how Prince Charles wants to save the Patagonian toothfish and his views on dairy farming.

What we're also learning however is how different Labour ministers liked to sign off their replies to Charles. Some are quite revealing...

Tony Blair

Relatively casual.

Alan Johnson

Straightforward. Classic Johnson.

Douglas Alexander

The Blair approach.

Elliot Morley

Very cazh.

Yvette Cooper

Respectful, but not overly so.

Patricia Hewitt

Seems sincere.

Caroline Flint

As does this.

Paul Murphy

And this.

Andy Burnham

This man wants to be the leader of the Labour Party. Although, it's been pointed out that he was just following the etiquette for addressing members of the royal family.

Charles Clarke

Etiquette that his colleague followed (albeit typed).

Meanwhile, all of Charles's letters have an identically illegible signoff:

While someone making notes while filing at the Department of Culture, Media and Sport seemingly got a little confused:

You can read the full cache of letters here.

More: Ten things we learned from Prince Charles’s ‘black spider’ memos

More: Here's what Prince Charles has to say about radicalisation