Unusual and unknown to me. Look like an early French or Spanish scale. Fine made and with good precision. The beam and pans are marked with unknown marks ( to me ) and show also the Maker ? name.
The wooden base contain also an drawer and an single add pan for easy loading. ( second look like lost )
The case measures 29 cm wide, 39.5 cm tall and 14/21 cm deep.
The scale it self has an additional base made of marble ( not movable ... but maybe later fixed inside )
The lower part of the case show decoration lines. The beam is made of iron. The stand look like nickel plated brass to me. Help is appreciated