Boeing B-29A Superfortress serial number 44-62191 O2 tank cuts

Boeing B-29A Superfortress serial number 44-62191 of the 344th Bomber Squadron/ 98th Bomber group USAAF
C/no 11668
All 12 crew escaped ok after the aircraft crashed 2 miles east of Wisbech, Cambs after departing from RAF Sculthorpe 
Delivered to the USAAF 10th Sep 1945. Assigned to the 310th Bomb group, Assigned to 344th Bomb Squadron , 98th Bomb Group, Spokane AFB, Washington. TDY to RAF Sculthorpe, Norfolk in July 1949
Written off July 21st 1949 en route the pilot encountered an unexpected situation. All 12 crew bailed out.
We are offering small and large cuts from this oxygen tank, you can see from the main photo the condition of the full tank, pulled from a dig with other recovered parts.
Two cut sizes, examples in the photos, very approx sizes, all cut at random and each unique. Please be careful with sharp edges due to the nature of the product.
Large approx 16-18x8-10cm
Small approx 4-5cm x9-10cm