Alarm box key

Alarm box key
Title
Alarm box key
Date 
1890-1920
Medium 
Brass
Dimensions 
Overall: 2 1/4 x 1 x 1/4 in. ( 5.7 x 2.5 x 0.6 cm )
Description 
Brass fire box key with "C 383" impressed at top and bottom; found with shield-shaped yellow painted tin sign (2168) with key hook above inscription, "FIRE BOX KEY," at center.
Object Number 
2216
Marks 
impressed: at top: "C / 393" impressed: at bottom: "393 / C"
Due to ongoing research, information about this object is subject to change.
Creative: Tronvig Group