Thanks for the info., Jimmy (#26) and Doug (#s 27-29).
I don't doubt that the shape of a library brush would be more conducive to dusting books on shelves, but I personally didn't have an issue with using the regular dusting brush when doing so. I don't quite understand the usefulness of the library brush in #29. It resembles a scrubbing brush. I also forgot to inquire about the wand for the library brush (#19). Did all versions of the attachment require the flat wand?
As for the crevice tools--I am taking for granted that the American ones were originally metal. About when did that change to fiber? Was the one for the aqua Model G the only one that was plastic (thinking that the ones since then are some type of vinyl)?
Nice pics, Doug. It seems that the European, Australian, South American, and Canadian models resembled each other more than the American ones.
Regarding the pic in #27, for which attachment was the elbow? Was that unique to Swedish machines, or did other countries/continents have it?
Still wondering how/if the European, Australian, and South American tools were branded.