Thank you ,will take my time as we would like someone who will appreciate itAh thats understandable! Its hard to tell sometimes.
My first port of call is google, if theres names or brands on the bottom of anything, a quick google will tell you if they are a famous brand or whatever, and when listing to Ebay you can put as much info as possible into the description so people can find it
There are plenty of folks who are experts in crockery etc and can give more specific advice, maybe even a rough estimation if you are able to give them an idea of what you have. Depends how much time you have or want to put into it honestly, like if you want the collection to move on to people who will appreciate it or if you just need it shifted out of the way.