The man in seat 61.

Why ‘Seat 61’?
Zaharoff, the notorious arms dealer, would always book compartment 7 on the Orient Express to or from Istanbul.  On Eurostar, I would always request seat 61 (in first class cars 7, 8, 11 or 12 in a classic Eurostar or in cars 3 or 14 in the new e320) as it lines up with the window, one of a cosy pair of seats facing each other across a table complete with table lamp, like an old Pullman car.

– seat61.com