Ivory hand carved Chinese figurines

I purchased the figures about 40 years ago from a frea market as a gift.  I now have them back and am in need of money,  however they do have extreme sentinmental value to me, and I would like to find out if they are worth the loss of the senitental value to me.  I paid quite a bit of money back then for them. (When I had the money)  and i have done a lot of research and realized the attached ones are worth more so I know they are worth quite a bit now. They are over 2 ft tall and are very intricately done.  They are autographed by the author but unfortunately I can not read chinese characters.  Please let me know, what you think they would be worth.