Andrew Irvine's ice axe. However, we just found a shirt with a George Mallory tag on it. And I'll tell you, it blows you away. Now that doesn't mean this is George. Maybe Andrew is borrowing one ...

George Mallory disappeared in 1924 aged 37 with ... breathless to find myself most precariously supported only by my ice axe somehow caught across the crevasse & still held in my right hand ...