The Hexentrics listed in the 1975 catalog have solid sides.
Salewa Ice Screws are listed, in Tubular and in Spiral.
Crack'n-ups I have seen spelled many ways within the Chouinard catalogs. Looking at the Firsts List in this catalog it is spelled Crackin'ups. The Chouinard 1973 supplement catalog is first to show Crack'n-ups. The Crack'n-ups went trough additional testing where the #1 was too thin for public use. But for some reason the #1 is still listed in the 1975 catalog. But in the wordage it is mentioned that Crack'n-ups will be available in the Spring.