The subject raised here regarding image circles of medium format legacy lenses piqued my interest, as I continue to use some of these to complement my dedicated tech camera lenses. Indeed, some of the V system lenses have image circles that one would consider generous considering the requirements of the 56x56mm film format. According to Wilde's 7th edition of the Hasselblad Manual (the Hasselblad user's bible), one can safely shift the 80/2.8 by 10mm, which by my quick calculation works out to an image circle of 107mm. Similar values are listed for the 60 and 250, with even greater shift (14mm) allowable for the 100/3.5 and 120/4. I've shifted the 100/3.5 pretty close to its limits and the image quality holds up remarkably well out to the edges. Perhaps the designers were not aiming for such large image circles (indeed, lenses like the earlier 40/4 and 50/4 can tolerate minimal if any shift) but rather this is how things turned out as they optimized around other parameters?I'm not saying you're wrong about your Hasselblad 80/2.8 covering 102mm, but I would find that astonishing because that would mean Hasselblad's lens designers decided to make an image circle vastly larger than needed to cover the film. You could cover an 85mm x 85mm piece of film with a 120mm image circle. I don't see why they would do that.
EDIT: I just saw subsequent posts - Graham and Rob: your calculations are consistent with Wilde.