I discovered under the paint on the bb. (wct 78). It's a little strange to have '76 cranks in a '78 bike but possible I guess. It's definitely a "special" but decals are decidedly difficult to find. The Carrera Sport's easy but no Carrera Special. Plus the head and seat tube have a large W, not the WINDSOR decal. I'm probably being too picky. Maybe I should just skip the decals. Figuring out what you have is part of the fun.