I recently acquired a small combo tool like the one posted here from an eBay listing--ivory with light gray sides (as Electrolux calls them in its manuals). I initially thought it was for a Model F or Model R, but when I perused Charles Lester's Electrolux information it indicated that the Model S and Model F's small tools had blue-gray and gray holders with ivory sides, respectively (at least that's what the photos showed).
Can anyone provide factual information?

Can anyone provide factual information?
