French tank Renault Char B1, weight 31.5 tons. Armed with a 47mm-SA gun Mod. 34 in the turret, a 75mm ABS SA 35 howitzer in the hull and two 7.5mm Reibel machine guns. The tank on the photo was called &quot;Bourgueil&quot; which is the name of a canton and a small town in France.

French Renault Char B1

Picure taken in Compiègne, june 1940.
The SAu 40 self-propelled gun was developped using a modified and extended platfom of somua S-35. It was to be armed with a 75mm APX gun (a modified 75mm 1929 fortress gun) with an automatic loading device. A rear firing machinegun was mounted on the command coupola and the tank was supposed to receive radio sets.
The full fledged prototype here was integrated in a battle group of somua S-35 in june 1940 and supposedly saw action. It is supposed to be the only one but some sources claim 3 others were produced, armed with only a 47mm canon. It disapeared after the campaign.