The planking probably is Douglas fir plywood and the ribs are white oak. Screws are silicon-bronze and so are the bolts attaching the planks to each other. Maybe the factory can help you identify the year. Floor boards can easily be replicated, especially if you have the existing ones from which to pattern. The mahogany plywood deck can also be replicated.
Screws are silicon-bronze and so are the bolts attaching the planks to each other.
Maybe the factory can help you identify the year.