I never compare this two guns from the point of collector's value, from technical view point both are shoting iron's.
Was only curious if the H&H price have to be realistic anyway.
In my opinion it seems that 50000 euro is a price you can sell such a gun. When it had have any historical value, the seller would't forget it to say it in the descripton. So I have to assume i t havn't a famous history collectors are willing to pay for.