Vintage Paris Mother Of Pearl Brass Opera Glasses Binoculars 1910s

This pair of Vintage opera glasses appear to be Verdi’s, but I cannot finds any markings. They came from a family members house which was built in NY in 1920, the family moved to eastern LI from Brooklyn so they are probably even older. They come with the original case, inside is worn but the ‘snap’ closure works. Appears to be a black leather case. The lens adjustment works, but it may need some repair. Please see the pic and ask questions if needed.