Cutlass, Dutch Royal Marines, circa 1850, scarce

This is believed to be a scarce (if not rare) Dutch Royal Marine Cutlass circa 1850, a variant of an earlier cutlass used by the Netherlands circa late 1700s early 1800s with a heavier fullered blade (see earlier cutlass at the UK National Maritime Museum).
Hilt is brass, simple D-guard with two side branches, forward swept upper quillon with barrel finial; wood grip with 20 grooves (longitudinal crack in grip from ferrule to pommel). Number "1" on underside of upper quillon.
Overall length is ~29"; blade length is ~23-1/4". Double-edged, straight blade, unfullered, spear-point tip. "Crown over T" stamped into blade at ricasso (see images).
Scabbard (incomplete) is black leather body with brass throat (I assume it had a brass drag).
Does not appear to be shortened or reduced in any way.
Good condition overall.