Manufactured by Signal Engineering & Mfg. Co. of New York

This is an early style box with a glass breaker on the front; Original glass. The box opens to reveal a 

"Pull Hook" which would set the alarm. The "Pull Hook" still functions as it should. This box is in 

great condition. NO keys are inclued. Call box measures 10" from bottom nut to top opening. The box

measures approx 6 7/8"wide and is just shy of 6" deep. No disappointments. Global Shipping Program outside USA AVAILABLE on this item. PLEASE EMAIL ME with any questions, concerns, or for more pictures of the item. Serious bidders only Please