This vintage Hargrave Secret Service sign is a porcelain coated metal sign once used to deter would-be criminals and vandals.
![](http://advertisingantiques.com/wp-content/uploads/2013/04/2up-1-16.jpg)
More items in Antique Advertising Signs
More items in Miscellaneous Advertising Antiques
This vintage Hargrave Secret Service sign is a porcelain coated metal sign once used to deter would-be criminals and vandals.