Sydney gives Mr. Lorry the papers. What other paper does Sydney give to Mr. Lorry? (From Book 3 Chapters 11-15)

From the text:

"A moment! Let me speak of it in its place. First," he put his hand in his coat, and took another paper from it, "that is the certificate which enables me to pass out of this city. Look at it. You see—Sydney Carton, an Englishman?"