The 95th BG flew the B-17F model in 1943 and 1944 and then the B-17G in 1944 until the end of the war.

The 95th BG had 136 B-17F's and 202 B-17G's. 

Below:  Picture of B-17F - Aircraft #42-3400 Gremlin's Sweetheart

Below:  Picture of B-17G with the chin turret - Aircraft #43-38333 Heavy Date

For More information of the History of the B-17 you can visit the Wikipedia Website at:

http://en.wikipedia.org/wiki/B-17_bomber