Most companies usually prefer to have "first" instead of "1st" in their domains, and in general, I think that you have run a bit into a stigma with this, as calling oneself the first one at anything usually comes with a questionable impression, especially in a business name, but especially in a domain name for a bank. Nevertheless, with a little bit of luck, you are going to find a buyer willing to buy it for a low two-figure price.
Hope I was able to help!