its hard to say, especially since the "my true love" isnt capitalized. the named plates are like whispering roses, only way to tell more than an average price is put up for auction. personally id pay 10mil for the plate if the name was correctly capitalized, but as is not interested. Someone may pay much more, and not care as much about the name not looking perfect, but only way to tell is put it up for auction id say.
hope that helps, hard item to pricecheck.