For sale: a small Tessak (Type G (digitalmuseum.no)). Other than that, J.P. Puype describes that specimen as Dutch maritime sabre around 1600 (
http://www.adviesoudewapens.nl/).
Blade is stamped with three crowns / king´s heads (?). Likely Joh. Wundes, Solingen 1560-1600. Grip is a replacement. Guard is fixed to the tang (welded). This is covered by the grip but I can send images from earlier if needed.
Approx dimensions: overall length: 72.5cm, blade: 58.5cm.
Asked price is 950€ + shipping.