So you want to go to Paris...
The dream of every Soldat, few ever got there. Paris was a hard city to get into. You needed multiple forms of ID including: Soldbuch, Erkennungsmarke, Kriegsurlaubschein, Wehrmachtfahrkarte, Gelietschein and Befristerausweis.
The truth is unless you were an officer, a member of a unit doing training in or around Paris, or a Soldat that just won the Ritterkreuz you weren't getting in.
Pictured below is the Geleitschein

Once lucky Luftwaffe Obergefreiter Auber got off the train in Paris he was given this Geleitschein by the Bahnhofswachoffizier Paris-Lyon. His paperwork would be check and he would be given this accompanying slip. This instructed him as a member of the Luftwaffe that he was to report between 11:45 and 13:45 to the Standortoffizier at Rue du Faubourg-Saint-Honore, 62. There he would be given his official permission to be in the city.

This is the back of the Geleitschein with an ink stamp of the Metro directions for the Obergefreiter to follow to check in.