Rainbowgirl,
Generally speaking, you will not find valuations on GMB.
Members are hesitant to offer them for any number of reasons.
The appropriate places to find values are the market place, eBay or bricks and mortar auction houses, (and even then that is full of pitfalls) or a professional valuer, who will carry the necessary public indemnity/ professional insurance to cover them.
Sorry if that is not what you wanted to hear, but value can be a very emotive and/or subjective issue.
Regards,
Le Casson