[mnwnvc]

Hull ID numbers were not required until 1972 when titles were introduced. In NY transfer of a boat made before that date are done with a transferable registration which you should have received when you purchased the boat signed by the owner and signing it over to you. If you stayed in NY they would have accepted this transferable registration as an equal to a title. If the registration or title was lost you can pay $2 or so and have a title search done by the state DMV showing the last registered owner. That and a bill of sale should suffice. You may never know the hull number of your boat.