from Tientsin to France with 2a. tied by a good strike of the very scarce "BASE - OFFICE/PAR./6 AP O1" single-ring d.s.(Proud PP2) in violet. An unusual item from a French soldier fighting with British troops. Photo " /> <I> "Corps expéditionaire de Chine"</I> from Tientsin to France with 2a. tied by a good strike of the very scarce "BASE - OFFICE/PAR./6 AP O1" single-ring d.s.(Proud PP2) in violet. An unusual item from a French soldier fighting with British troops. Photo | Christie's