chinese scrolls

hi we have come across 6 Chinese scrolls, Im told are from the Beijing museum, and are worth a lot of money as there were several items missing when Japanese soldiers entered china, a lot was taken and missing in tywon, can you please help us. the paper is very very old, its seems to be in 2 parts, the edging is like a soft felt/paper, the scroll it self is cardboard and the ends are timber. there are some water damage. we want to know where they are from, who was the artists, their age and of course the value. thank you.Mick