Can someone identify this?

[eurekastar]

This the outside of the attachment box for the NOS Kirby attachments I picked up. It's missing the suction coupler so I can't tell where in the 500 series they fall.

 

[electrolux~137]

Nice find! That's a 516 attachment set, the first "streamlined housing" 500 series Kirby. Here's a photo of the large outer box.

 

[eurekastar]

Thanks, Charles! The set is missing a few things. But what's in there is brand new.