I cannot speak to the scabbard. It matches the font on my 36 S/239, but the blade does look different than mine. That does not make mine right. It just makes one of ours different.
The frog marking is St. Orthey > Marienberg - Westerwald > 1935 for the firm of St. Orthey Lederwaren-Fabrik, Marienberg/Westerwald. Early frogs like this one are very difficult to source ......