YOU ARE offerDING ON A VINTAGE FDNY FIRE ALARM BOX INNER MECHANISM. THE MECHANISM COUNTS DOWN PROPERLY WHEN THE LEVER IS TRIPPED. HAS GLASS MECHANISM COVER. CODE WHEEL 1875. THE LAST PICTURE SHOWS THE TYPE BOX THIS FITS AND IS NOT PART OF THE sale. VIEW ALL THE PICTURES AND ASK ANY QUESTIONS PRIOR TO offerDING AS ITEM IS SOLD AS . SHIPPING WILL BE MORE OUTSIDE THE LOWER 48 STATES.