Looks like you're been well set up with the info to get out there and do the research.
Just beware, as in real estate and all things ... there are people out there looking for bargains. Similarly overpricing them does not a sale make!
Perhaps there are family/friends that would value them more than any $ you could garner from their sale? Or perhaps a museum or heritage centre, would welcome them?
Consider long and deep before you part with them.