The Potez 540 was a French bomber of the 1930's. Its first flight was in November 1933.
It saw service in the Spanish Civil, where it was used by the Republican side.
At the beginning of WWII it was obsolete, though the Potez 542 version continued to serve in the French Colonies and saw action in the short conflict between Thailand and Vichy France (December 1940-January 1941) over territories in Indochina.
has more information on the original.
The model is designed with "Detail" materials in mind, especially "Transparent Detail" which gives a nice effect for the large windows and turrets. Some detail is lost with WSF.
The model is not painted, buyers may want to add propeller disks from clear plastic. The airplane is shown in flying configuration, with landing gear up. Note that the cockpit and the nose in front of it are asymmetric. This is a feature of the original, not a flaw in the model.