LEGO Duplo Crane with Red Lever

has been used in at least 1 LEGO sets over the past 39 years, since it was first used in 1984.

Flip Creation

Where can I buy bulk lego technic (or aftermarket) gear and axle sets large enough to make sophisticated mechanical motion demonstrators (with lego/aftermarket electric motors, controllers, programmable maybe)? - Quora

LEGO Duplo: Fire Truck (10969) – The Red Balloon Toy Store

LEGO® DUPLO® Rescue Fire Truck - Fun Stuff Toys

LEGO 42042 Crawler Crane, 5702015349758

Peeron: Deluxe Train Set (#3772-1)

Review: #40563 Tribute to LEGO House - BRICK ARCHITECT

Explore and recognize that the effectiveness of a lever depends on the arrangement of the pivot point, effort and load.

LEGO Inventory for 5609-1 Deluxe Train Set

LEGO 10933 Tower Crane & Construction (DUPLO) - Kite and Kaboodle

Bricker - Part LEGO - 4559c01 Duplo, Train Base 2 x 6 with Red Train Wheels and Moveable Hook