Grandma's Fine China

I've inherited my grandmother's fine English china. She actually used this set many times during my childhood (1960s). Before I was born, she had an antique store, so I don't know how old it really is. The pictures don't show well, but many of the pieces have a cracked glass effect (don't know what that's called). That probably diminishes the value. I would like to know the approximate date and value. Thank you.

Fair