Thanks Sandy!
Wow, lots of good info there.
Was the power nozzle an option on the Model L? Based on the amount of stuff the owner of the house hung on to, it seems like it should have been there had they ever been in possession of it.
Also, the little receptacle for the PN has a rubber cover that plugs in, and it's still nice and tight with good insertion force as if it seldom has been opened. So I suspect this one has never been used with a power nozzle.
Joe