I did a googe search and it turns out to be a 128-23, with all original parts. It was apparently meant to have the crinkle finish of the body set up against the shiny shellac of the hand wheel. It works well with the shiny black slide plates, maybe that's why. I found a picture of a 128-23 on
this site. I'm not sure of the the special feature of the submodel 128-23, but the finish seems like it's part of it, and the the lid in front just above the bobbin winder isn't on the 23 version. The motor and light set up is very nice on you machine, it's a nice little machien in general.
