Envelope carried out of Paris during the 1870 siege in the balloon "Le Godefroy Cavaignac." This letter was among the 200 kilograms of mail carried on that day by pilot Mr. Godard, Sr. They landed 256 kilometers from Paris, which should have been far enough away from Paris. Unfortunately for the pilot and passengers, there were German troops in the area. The mail was hidden in a wagon and forwarded to a post office.