Hi,
The first pic is a view of the rear of the propeller, but it seems the blades are showing their extrados. So, I do think the blades are turned back to front. If true, it is a RH prop and MS-406 had a LH prop and it was larger than this one : more than 3 meters, which can't be reached with 1,285 meter blades (".../... Popellerblätter haben eine Gesamtlänge von je ca.1285 mm .../...").
By the way, it is very curious that there is the same misspelling in the title of the post and in the description of the popeller... or humoristic?
Cordialement,
PM