Danny and SeaCraft Savage are BOTH right regarding the fonts used in the logo! Here's two photos of original logos that show some subtle changes made from the early to late 70's:
First photo is original "signboard" that was on my 1972 Seafari when I bought it in 1975; pictures of a couple of models in brochures dated 1972 also show these signboards. Font appears similar to Danny's file, so I'd say it's the technically correct one for 70-72 models, while the later font is appropriate for 73 and later models. (69 & earlier Moesly era boats used the metal script emblems that are available from
www.moeslyseacraft.com) Yet the name on the front of the 1972 brochures is the later font! Maybe Potter actually made the change in '72 but was just using up leftover signboards!
Those plastic boards subsequently disintegrated (the letters fell off!); I replaced them with decals I bought from SeaCraft sometime in 1977-79, shown in second photo. Biggest difference appears to be in the shape of the "r" & "t", which are squared off on the earlier font and slanted on the later one; earlier font also had vertical bars on the S & C that were slightly different on later font.
A review of my collection of old brochures also shows a few other changes over time. The photos in 1973 catalog show only the SeaCraft name without the black/blue "S" that shows up in 1974 and later brochures, so 1973 must have been a transition year. Also noticed that the lower half of the S symbol was blue on the brochure photos and in Danny's file, while it's clearly reversed on the one I bought from SeaCraft; were obviously made both ways! I also noticed that the decals on the dark colored hulls have black letters outlined in white or gold, while the white hulls have black letters only. I guess the bottom line regarding such trivia is that there is often more than one "correct" configuration! Just like on vintage Detroit muscle cars, "Specifications were subject to change without notice"!