KalamaQuilts

here is an image shared here by cjtinkle in the third post.
http://www.quiltingboard.com/vintage...w-t173591.html

I 'think' all machines have screw holes in the throat plate or nearby, on the right.
I've never seen a full set of attachments that didn't have one of these metal seam guides except the really recent machines, but they differ in how wide they are.

sometimes seam guide is confused with the yellow rulers with the hole in at 1/4" to put the needle which you then put some kind of block up against, be it metal seam guide or tape or whatever.