I also remember a turning page format, just not who. You clicked the lower corner icon and it flipped to the next page. On my computer the result was a display so large you could only see portions of it at a time, which pretty much negated the impact for quick scanning to see what might be of interest. It became a contest of moving the view around the page just to see something.
I'm thinking the Ford Motorsports race parts catalog used this, too. It was novel but not so much. If a catalog was printed on a scroll it would be unwieldy and difficult to get to the "page" you were looking to find, too.
Formats gel in each type of information package, sometimes they don't work so well trying to blend them. I find paper catalogs fun and easy to read, or at least familiar. Electronic ones work their way, too, if you can get the search engines to recognize your parameters. I work with two for a living, the autoparts database the company has built, vs the online catalog, which can find things twice as fast. The first is menu driven and it's horribly arbitrary with no flexibility at all - trying to find something like a 1911 safety spring tube means you call it a plunger tube or no go.
And they get to choose the wording - calling it out for what it is works on the internet but not the database. Add the newbies don't even know what to call it and that is one area that makes things difficult for looking for parts.
I have no doubt some electronic gun catalogs are the same. We have no commonly accepted terms and some internal search engines are too limited to offer all the various synonyms used by the public.
Like, 1911 clips.
