Napoleon III 40 centimes orange on lettersheet  from Paris 14-10-1870 per Ballon Monté Jules Favre No. 1 via Chimay in Belgium, where the balloon landed on 16-10-1870 (no arrival mark), to The Hague (arrival mark 18-10-1870 at reverse), faults (stamp damaged, letter a little unfresh and small tear at reverse)