Interesting Royal floor tool...

[stricklybojack]

.
in this badly staged photo on Craigslist. All metal floor attachment? I did not know that.
Okay experts tell us (please), what machine is this hiding under there?

http://longisland.craigslist.org/hsh/4396010964.html

 

[ge1969]

Hi All! I can't tell you the model of Royal that upright is, I'll leave that to the more knowelgable of those machines. I CAN tell you that that metal floor tool is NOT Royal, but Rexair/ Rainbow, probably from a D-2 model. Later, Toby G.

 

[kenkart]

Tobys Right!

That is Rainbows Jet Rug Tool, introduced in 1964.