They are in great condition with good clear optics. They are marked EXTRA / LUMINEUSE / 8X on the left prism and HUET PARIS on the right prism. The objective end of one prism housing is marked MG / A.
Huet was an optical firm that began in business in 1892 and made instruments for the French military during WWI. The underside of the case lid also has the Huet brand and address in Paris.