Heather who does the “Edsmum” blog has kindly pointed out that there’s a rather nice Featherweight attachment box (the little-suitcase-type one) up on Ebay now which among other things has in it a Needle-Art Embroidery Guide. Not only that, but it’s a “blackside” one! And you can read the first digit of the number on it, so I’ve corrected my original post accordingly.
So, if you’re a Pheatherweight Phan, you don’t have the case, and you don’t have a Needle-Art Embroidery Guide, good luck with listing number 160831922516. Note that it finishes on 1st July, it’s in the US, and the seller states “no international bids”.
(Come to think of it, if you are a Pheatherweight Phan, can you solve a little mystery for me? Why on earth are the black attachments always called “blackside” rather than just plain “black”?)
oldsingersewingmachineblog 
Oh I’m sure you’re right Diana. And you can add “Red Eye” to the list as well 😉
Do we know that Singer ever called them that? Or is it yet another “handle” that collectors have pinned on them in later years??? I am sure no manufacturer ever called their “non-glare” finish Godzilla, for instance.
But the question is – why on earth are they called “blackside” rather than black, blacked or blackened?
A “blackside” is a machine that has no chrome or nickel, even on the handwheel or faceplate. “Blacksides” were made during the war years when chrome was only for military use.
An interesting suggestion, Diana!
Well it has been several hours and no one has weighed in, so I am going to venture a guess that “blackside” originally was used to describe machines with an unchromed faceplate
….”black SIDE”…. and just progressed to the attachments. They were produced before and during war times, so my thought would be that the materials used to make chrome finishes were needed elsewhere.