A display in the museum.

A B-17 "Ball Turret" with two Browning machine guns and a display about the crew

The museum includes a World War 2 display of the "Ball Turret" of the B-17 'Ethel" (41-24364) of the 429th Bomb Squadron, 2nd Bomber Group, 15th Air Force that was shot down on January 15, 1944, while on a mission to bomb Certaldo, Italy.  On the way ot the target, they were attacked by enemy fighters and shot down.  All 10 crew bailed out, and the plane crashed in Lake Bolsena and sank to a depth of 300 feet.  The 'Ball Turret' of the plane was recovered and placed in the museum in 2014.

The crew included:

1LT William I. Pedersen -Pilot; Escaped and Evaded linking up with Allied Forces on June 10, 1944

2LT Joseph B. Townsend - Co-Pilot; Hid with a local family and linked up with Allies on June 9, 1944

2LT Karl Shawaker - Bombardier; Captured and POW at Stalag Luft 1

2LT Kermit Buol- Navigator;  Captured and POW at Stalag Luft 1

S/SGT Charles E. Ringler - Waist Gunner; Wounded, aided by the population, linked up with Allied forces on June 10, 1944

T/SGT John B. Sergakis - Radio Operator; Hid in Grotte Santo Stefano until linked up with the Allies on June 5, 1944.

S/SGT Ralph W. Truesdale - Ball Turret Gunner; Etched the name of his wife on the Ball Turret, "Ileen Lois"; injured in the jump, captured by the Germans but escaped three months later and linked up with the Allies on June 5, 1944.

T/SGT Bernard L. Scalisi - Upper Turret Gunner; Escaped and Evaded and climbed the Vatican Walls and waited for Allies along with Brodniak

 S/SGT Anthony P. Brodniak- Waist Gunner; Escaped and Evaded and climbed the Vatican Walls and waited for Allies along with Scalisi

S/SGT Horace Mahabirsingh - Tail Gunner: Captured and became a POW at Stalag Luft IV, survived the Black March.

Source: https://www.tusciaweb.eu/2018/04/la-fortezza-volante-salvata-dal-lago-dalla-gente/#gsc.tab=0

https://www.warhistoryonline.com/war-articles/ileen-lois.html

See photo of display about the crew (Summarized above).