Hand blown milk glass, very rare, practically extinct. No cracks or flea bites, however the gold letters are worn almost completely off, Over 100 years old!
The pin is approximately 1.4mm wide.? It is a square pin with a twist slightly more than ? of the way down the pin.? Very unique subject in flawless condition for its age!
The pin is approximately 1.4mm wide.? It is a square pin with a twist slightly more than ? of the way down the pin.? Very unique subject in flawless condition for its age! 
