I'll be happy to answer any question: feel free to ask.
This is a lovely antique french opera glasses.
Aluminium and mother of pearl.
Signed by the wellknown:
PROSPER BUNOUST , PALAIS ROYAL, PARIS.
At that time, the Aluminium was considered as a precious metal !
Delivered in the original box:
Dimensions:
Closed: 10 x 6 cm
Opened: 10 x 8 cm
Period: 1850 - 1880
PERFECT CONDITION
Here is a converter inches / cm to help you with the dimensions: