"Houston, we have a problem"... Here we see two 906 chassis claiming the same number, "906-131". Which is it, this one https://pbase.com/image/153686933 or this other https://pbase.com/image/153686905?

Recently offered for sale on 12/02/2013 at 750,000 GBP, see here http://www.carandclassic.co.uk/car/C456246# and if you do the money conversion, that's well over a cool 1.2 million dollars asking price at todays (Dec/08/2013) exchange rate ($1,226,852.56)