If that's the same museum I'm thinking of, they've got a reputation for... er... being creative!Turreted Universal Carrier with 20mm Gun
If people remember, there was a P40 found out in the desert. The Sgt pilot wandered off and was never seen again. The IWM tried to bring it back to the UK to display it as found as a memorial to the pilot. The Egyptian authorities refused to let it go and it ended up in this museum with an abortion of a paint job and a stupid airscrew.