Karl,

Most often the spear point lugs are associated with the Vincitore. Since Mercian bikes are bespoke the forks can be whatever the purchaser specifies. Below is a photo of my 1982 Vincitore. If you look carefully at the top tube lug lining you can just see the spear points. Also the head tube logs are more ornate. Mine is built with 531. The fork crown is sloped, but lugged.