VERY OLD.  MOST LIKELY FROM THE EARLY 1900's.  

ETCHED THROUGHOUT!  Etching on the bride, frames, and sides.  Mother of pearl nose pads.

Marked 12kgf on the bridge.

They are 4 1/4" across the front.  The bridge is approximately 5/8".  They are 4" long.

Condition:  Still flexible.  Neither of the lenses have chips or cracks...light scuffs.  

Let me know if you have questions....thanks

Location D3, MER, FBMP