Large antique porcelain tea cup (Imperial Russian?)

Hey hey!

I've got this beautiful quite thin porcelain large tea cup and saucer. I've seen a lot of Imperial Russian (Kuznetsov mostly) tea sets and it does look like it's Russian to me. No Kuznetsov or any mark unfortunately, just impressed letters and number.
It's a long shot, but maybe someone recognizes the impressed mark

If not, I hope you enjoy this lovely cup from my collection


Erik

 

Not sure I see anything that looks particularly Russian about this one, but from the incised marks, I would say continental Europe somewhere! Sweet.

 

I had a milk jug with Kuznetsov mark that had same colors and almost identical decor, but it could well be continental Europe