Through out the 19th and 20th century opera glasses were in popular use for the wealthy. It was a very fashionable pasttime to visit the opera and ballet, and a fine pair of opera glasses would be a necessity. For ladies these came in several materials, from mother of pearl and silver, to very fine enamelled glasses. For gentleman these would be more robust and were usually covered in various leathers and could sometimes double up as field glasses.
 
These are a pair of metal opera glasses with leather. Made in C.P.Goerz in Berlin. With an extremely rare focusing mechanism.
 
In good working order.
 
Dimensions : 6cm x 9.5cm wide.