A variant on the oft seen metal and wire hat trays, here translated into plastic. The backplate fits slatwall, possibly slatwire, and a tower display with channel-equipped arms (bottom view). I could not overlook the fixture because it merchandisied caps from Penn State, my alma mater.

For other tower-related reporting SEE…
Rough Cut Wood Hat Tray Tower
Slotwall Tower Concept
Flip Flops Climb a Ladder Tower
Ladder Crossover from Grid Design Tower
Leaning Tower of Clearasil

For other means of serving-up headgear see…
Selling Caps Two-at-a-Time
Rough Cut Wood Hat Tray
Hat Ledge Plugs In
Hat Ledge for Slatwall
Hat Ledge for Slot
Built-in Mirror Sells Caps
Slatwall or Tower Hat Tray
J-Hooks Product Stop Caps
Branded Slot-Mount Hat Tray
Slotted Faux Surface for Cap Merchandising.”

For unusual cap merchandising SEE…
Gucci Gangsta Cap Display
Colorful Kangol Cap vs Slouch Hat
Winter Cap Gets the Finger.”

For headform core fixture see…
Classic Millinery Faceout
Curved Slot-Mount Cap Displayer
Slatwall Hat Displayer
L’arbre de Chapeau (Hat Tree)
Frankenstien-Inspired Fixture.”
Animal Cap Show-and-Tell
Hybrid Helmet Hook
Corrugated Headform Cut-Out