Wimpy recovery near Milan, Italy

Hello and good evening,

I’m from Milan, Italy and I’m involved with historical researches about air raids against my city during WWII.

About two weeks ago, with some friends found the wreckage of a Wellington, one of the two aircraft of 205° Group lost after an air collision during the night raid of 13/14 july 1944 against Milan-Lambrate M/Y (four others Wimpy were lost during the attack: one of them, hit by flak, crashed near the target).

The crash site was located between the cities of Crema and Cremona, about 70 Kms east from Milan.

During the operations were dug up (3/4 meters proof in the ground) few remains of the aluminium alloy of the geodetic structure, mostly identified for being part of a outern wing of the aircraft (if you are interested in, I can post, when it’ll be ready, the web link for the recovery) .

But in the same digging area was also found remains of a thin (but strong) black rubber, fitted with a bronze/brass (?) air valve and a screw plug (I submit some photos).

Do you think that this black rubber could be associated with a Wellington? I have read that this kind of aircraft was sometimes fitted with “floating rubber bags”, located in/over the bomb bay, but I’ve never seen drawings or pictures of this (rescue?) system.
Or could it be part of a “dinghy”? (but, was this rescue boat fitted with an internal air tube?)

At last…I could also suppose that this rubber frame has nothing to spend with a Wimpy, but simply be part of the garbage buried in the ground by local farmers in the long run (plastic, metal and wooden rubbish, like a rusty spade and rivets, a plastic bucket, rotten shoes – not RAF flying boots, sorry – ecc. was also found in the same digging area).

Any suggestion about it? :confused:
Thank you in advance for kindly replies.

With best regards,
Komet