FRIEDR VAN HAUTEN Old Beer Stein

I have a German beer stein that was brought home by my grandad from Germany when he served there during WWII. There are some signings on it:
    on the lid:              Arnst von Krosiq k s/L Karlvon Angel
    on the cup:            1/2 L
    on the bottom:        MANUFACTUR
                            FRIEDR VAN HAUTEN                                BONN am RHEIN            and some numbers.
I would like to sell it for £80 (I am based in Britain) or $100.