FYI, fork crowns which appear to be continuous with ther blades, other than sometimes a small separation seam, are generically referred to as 'integral' fork crowns. This distinguishes them from a Unicrown, which can have a similar appearance but eliminates the traditonal crown by using fork blades with lateral curves at the top and that are (usually) TIG welded directly to the steering tube. Integral crowns date back to at least the first bicycle boom of the late 1890s but enjoyed a modern resurgence after Cinelli introduced his fully sloping version of the integral crown on the 1951 Cinelli Super Corsa.