‘May I be permitted? Thank you. A fine old-fashioned watch,’ he said, taking it in his hand. ‘Heavy for use, but massive and genuine. I have a partiality for everything genuine. Such as I am, I am genuine myself. Hah! A gentleman’s watch with two cases in the old fashion. May I remove it from the outer case? Thank you. Aye? An old silk watch-lining, worked with beads! I have often seen these among old Dutch people and Belgians. Quaint things!’

‘They are old-fashioned, too,’ said Mrs Clennam.

‘Very. But this is not so old as the watch, I think?’

‘I think not.’

‘Extraordinary how they used to complicate these cyphers!’ remarked Mr Blandois, glancing up with his own smile again. ‘Now is this D. N. F.? It might be almost anything.’

‘Those are the letters.’

Mr Flintwinch, who had been observantly pausing all this time with a cup of tea in his hand, and his mouth open ready to swallow the contents, began to do so: always entirely filling his mouth before he emptied it at a gulp; and always deliberating again before he refilled it.

‘D. N. F. was some tender, lovely, fascinating fair-creature, I make no doubt,’ observed Mr Blandois, as he snapped on the case again. ‘I adore her memory on the assumption. Unfortunately for my peace of mind, I adore but too readily. It may be a vice, it may be a virtue, but adoration of female beauty and merit constitutes three parts of my character, madam.’

Mr Flintwinch had by this time poured himself out another cup of tea, which he was swallowing in gulps as before, with his eyes directed to the invalid.

‘You may be heart-free here, sir,’ she returned to Mr Blandois. ‘Those letters are not intended, I believe, for the initials of any name.’