New to me Day Sailer 1

Good afternoon to everyone. My hubby and I just acquired a "precision" day sailer 1. Unsure of the year as the previous owner did not have the title so we are trying to find out as much info as we can. There are some imprinted numbers on the transom. Just wondering if this is the hull ID#. Also the is a metal bracket in the floor of the boat we are not sure of. I am including pictures. Any assistance is appreciated.