Really special vintage accessory from early 1900s PA / NJ optometrists!
Each pair is different and unique.(1) -Black case / Blue interior, frames have nice patina! "Dr. Wilson, 685 S. Broad St. Trenton, NJ"
(2) -Brown case / Green interior, gorgeous gold frames, "Dr. John S. May, 246 E. State St, Trenton, NJ"
(3) -Brown case / Green interior, Silver oval frames with lovely etching details
(4) -Black case / Black interior, Frames missing 1 arm, "N.Snellenburg & Co. Phila Penna