that blob to the right is a magnet holding on that nameplate until I can get the right kind of glue.
I remembered Robert's excellent treatment of the Bulgarian lines, and this is definitely a rebadged Maritsa (which I mistyped above). Looks like a match for the Maritsa 11. I gave away my 1300F, so I didn't have those spools to raid for this. Time to go through the box upstairs.