I picked up a MOP machine this morning. I thought it was a 15-1 but it has a lot of more modern (as in, 1900-1918) features. It's in pretty good condition but it's called a "New Premier" which is hard to Google: I found a VS machine but it wasn't MOP.
Pictures are
here
It looks German, but that's mainly because of the font (very strong gothic) and it's very early for a 15 clone, and very late to be a MOP! Also has a rectangular base, suggesting later (than 1890).
Any information would be greatly appreciated.