When PSC started building the 37 in 1980 the hull numbers started with 101-My boat is hull #139 so it's the 39th that PSC built.Consequently hull #237 would be the 137 th hull built.Before PSC some 20 37's were bulit by Cruising Consultants the makers of the Westsail sailboats.They are externally very similar but each is custom built internally.
The hull number on the stern of your boat contains the year it was built and the hull number.
Hope this helps,
Dianne and Chuck Burke S/V NiftyNickers C37 #139
Crazy Fish is hull #207 and the boat was delivered late Nov, 1989.
We put a deposit down in Oct, 1988 and I believe the hull number was
assigned at that time. We had a choice of a few numbers close to 207.