Hi Brian, This type of boats are called Kotter in the Netherland. A Person called van der Poel, working for Klaasen Shipyard around 1970, started his own business in building steel boats for inland waterways. His products became known under the brand name Stella Maris. He built custom steel Kotters and Vlets from around 10 to 15 Meters with angular and canoe type stern and round bilge. The famous Designer Peter Belsnijder was somehow involved in their design. At least one example was built as a motorsailer with ketch rig. Your friends Stella Maris 44 must be one of those boats. To my best knowledge, this company does not exists any more for more than 25 years. Below one more example of those boats.