G. Keller, Paris.

The Silver Cube features a clock, compass, engraved Fahrenheit and Celsius temperature scales, a monthly calendar and a barometer and is mounted on a silver swivel base. It is punched several places with a silver mark containing the initials LR.

The compass and clock dials are matt gilt, the barometer is silvered and all feature black lettering. The thermometer and calendar have engraved scales with the calendar having adjustable month and day features. The barometer is mounted in a hinged door that affords access to the movement.

The eight-day time only movement is wound and set off the backplate, has a balance escapement with the platform mounted above and is stamped ‘948’.

For a similar sold clock see:

c.1900 French Sterling Silver Compendium. – Sundialfarm

The tag on the bottom seems to be from an Argentinian retailer.