Duplo: My First Fire Helicopter and Police Car - Beyond The Blackboard
LEGO Duplo Thomas & Friends 3300 Harold the Helicopter NEW! RARE! Mail Crate | eBay
BrickLink - Part 6350c03pb01 : LEGO Duplo Helicopter Body with Blue Base with Blue 'POLICE' Pattern on Both Sides [DUPLO, Aircraft] - BrickLink Reference Catalog
Lego Duplo VINTAGE HELICOPTER Red Blue Green Complete with PROPELLER & ROTOR | eBay
LEGO Set 2925-1 Helicopter (1995 Duplo > Toolo) | Rebrickable - Build with LEGO
LEGO Set 2675-1 Police Helicopter (1993 Duplo > Town) | Rebrickable - Build with LEGO
LEGO Duplo 2925 - Helicopter - DECOTOYS
LEGO Duplo 2925 - Helicopter - DECOTOYS
LEGO® DUPLO® Police Station & Helicopter 10959 – Growing Tree Toys