I also had the good fortune whilst I was in Paris to be staying in the delicious Montmartre Studios, live/work spaces for artists build by the city council in the thirties.
More exciting. The building is on Rue Ordener, almost directly opposite the site of the first motorised hold-up. This happened in 1911, and was carried out by the notorious Bonnot Gang. According to the guide book it was a meticulously planned raid. As well as being hardcore anarchists the gang had a reputation for being sharp dressers and doing things with style. The previous week they had stolen a Delaunay-Belleville limousine from the home of a top industrialist. This type of car was the one favoured by the French President and the Czar, and was capable of speeds up to 125mph, this at a time when police cars had a maximum of 23mph.
On the morning of the robbery, after the gang had sat outside the branch of the Société Générale for an hour the uniformed messenger finally turned up to deliver the banks daily cash and correspondence. Before he could go inside two members of the gang wrestled him and his bodyguard to the ground, shooting him twice in the chest before he was relieved of his briefcase. The get-away vehicle fled north before any of the general public or police could give chase. The aim was to ditch the car over a cliff near Le Havre, but they got lost, ending up on the beach in Dieppe. Nevertheless they calmly caught the train back into Paris. The briefcase contained only 4000 francs in cash, it was mainly bonds. What they did get was an international reputation and a place in the history books.
For the full story and all the politics; The Bonnot Gang by Richard Parry published by Rebel Press. It is an excellent read.