A Beertender needs advise.

[voyagerbar]

A friend of mine has inherited a unique wine collection (to me at least). I have heard of some of them but not all, and especially the ages. I was hoping that a GURU or 2 could help. He would like to know if good/bad, worth anything to be sold, Price estimates, etc.
Thanks in advance.
WINE LIST INDIVIDUAL BOTTLES:

1899 CHATEAU LAFITE ROTHSCHILD
1887 CHATEAU MARGAUX
1964 CHATEAU MARGAUX
1954 CHATEAU LAFITE ROTHSCHILD
1954 CHATEAU LATOUR
1961 CHATEAU CHEVAL BLANC
1970 CHATEAU HAUT BRION

HALF BOTTLES-ES (10 THS):

1918 CHATEAU LAFITE ROTHSCHILD
1962 CHATEAU LAFITE ROTHSCHILD
1981 CHATEAU MOUTON ROTHSCHILD