Antique Mark Cross brass opera glasses binoculars with the original Mark Cross stamped leather case. Vintage pre-owned condition. Opera glasses function properly with smooth center focus adjustment. Brass shows age-related patina and wear consistent with age. 

Original leather case included with visible edge splitting/separation and wear as shown in photos. Condition note: closure on case does not remain closed. 

Elegant decorative vanity or library display piece.

Measurement as seen in picture approx. 3-1/2 inches x 1 inch widest point.