Blankwaffen Forum (https://deutsches-waffenforum.de/index.php)
-- Blankwaffen Deutschland bis 1918 (https://deutsches-waffenforum.de/board.php?id=4)
---- Sachsen (https://deutsches-waffenforum.de/board.php?id=18)
Thema: Infantry officer's sword circa 1750 (https://deutsches-waffenforum.de/topic.php?id=6593)

Very nice and distinctive marking to the both sides of the blade. Blade itself is unusually heavy - apparently this is not a court sword.
Similar hilt is described in Klaus Hilbert book (p. 58, plate 33) - looks like they were regulated.