"Between ten and twelve thousand dollars, sir."
"Intuition, monsieur, is an indispensable item in the equipment of a successful chevalier d'Industrie. So, at least, the good novelists tell us…."
"Open the safe, Blensop, and fetch me ten thousand dollars."
"Very good, sir."
"I presume you won't object to satisfying me that you really have this document, before I pay you your price."
"It is this which makes it a pleasure to deal with an Englishman, monsieur: one may safely trust his word of honour."
"Indeed…."
"Permit me: here is the document. Use that magnifying glass I see by your elbow, monsieur; take your time, satisfy yourself."
"Thanks; I mean to."
Another break in the dialogue, during which the eavesdropper heard an odd sound, a sort of muffled swishing ending in a slight thud, then the peculiar metallic whine of a combination dial rapidly manipulated, finally the dull clank of bolts falling back into their sockets.