As for the pedigree, well, it comes from the estate of the "Comte de Paris", the "King that would be", if we still had a monarchy. Sold by Christies, an auction house of very high reputation.
The auctionneers in France are highly skilled professionnals, and the cursus is a very demanding one. I doubt they described the carboard box as being the original box coming with the razor.
(sorry for the late reply, the toddler was struck with a severe tonsilitis, and well, I'm first and foremost a stay at home dad)