C 3
Going back to Doug's question about the C-3. It was identical to the C-2 but a floor/wall brush was included with the attachments. A place was created for it in the attachment box.
I have many of the vacuums pictured so far. One vacuum that has eluded me so far is the C-10 Golden Glide. My Grandmother had this vacuum in the 70's. It replaced a AirWay 66. I have been looking for this model FOREVER! The AirWay actually outlasted the Singer!
Marty