The B-17G was the final version of the Flying Fortress, incorporating all changes made to its predecessor the B-17F, adopting the remotely operated "chin turret" for forward defense from the YB-40 "gunship" version, and in total 8,680 were built.
The Sally B is operated by the B-17 Preservation Group, based at the Imperial War Museum in Duxford, England. This model version is from a 1985 photograph with white canvas cowl covers in place. This model was purchased built, but I added some detailing and the canvas covers.