how old

I am trying to find out about how old my DS1 is.
There are no hull #'s imprinted on the transom. There are no placques or id markings on the hull that I can tell. Coamings did not come with boat. The floor has reinforcing strips in it parrallel to the centerboard. The floorboards seem original. Seats are molded. Bulkhead has 2 openings to the forward locker and floatation below. Mast is tapered. Deck was a sea green color.
Any ideas?
Thanks
Dan
There are no hull #'s imprinted on the transom. There are no placques or id markings on the hull that I can tell. Coamings did not come with boat. The floor has reinforcing strips in it parrallel to the centerboard. The floorboards seem original. Seats are molded. Bulkhead has 2 openings to the forward locker and floatation below. Mast is tapered. Deck was a sea green color.
Any ideas?
Thanks
Dan