Sprinkler PHB Hinged Box 1 1/2" x 1 1/2" x 1 1/2" with a dragonfly inside. This trinket box is a PHB made by Midwest of Cannon Falls. This beautiful porcelain Limoges style treasurer box would make a wonderful gift. The history of the hinge box dates back to Limoge France in the 17th Century. It can be used for secret messages, love notes, trinkets, jewelry, baby keepsakes, and other precious and valuable items.