I checked Lenkiewicz's book too, and what I can say there is nothing more than a thought it is probably Solingen product. None of the halfmoons depicted there is identical - but there is a great difficult to match something such popular as this markings. I agree the halfmoon on page 67 is similiar (also p. 28 which is earlier), but I somehow feel that this two halfmoons on your blade can be together entirety mark and we shouldn't seek a singular halfmoon to crack this one - but it's just a feeling.
If it is really 17th century blade, maybe we've got something unusual here, as transitory form of a blade of the turn of the ages!.
But meanwhile I found a book where we can find something similiar. It's old catalog "Macevi. Bodezi. Nozevi" by Marija Sercer published by Povijesni Muzej Hrvatske, where are few pallasches from the turn of the ages - end of 17th and 1st half of the 18th century - similiar to yours. Blades are 4cm (1,57''), 3,5 cm (1,37'') and 3,9 cm (1,53'') thick !. They are a bit shorter: 88,3 cm (34,7''), 85,5 cm (33,6'') and 89,7 cm (35,3 cm) but 10-15 cm is not a difference, is it ?
. Unfortunately author didn't give us any information where they were made - I wouldn't be suprised if these are Hungarian products, yours too !!!
Regards