Engineer's Scale Model of an Extending Fire Escape Ladder

From 1st Dibs:

A detailed engineer's model of a lattice-girder extending fire escape ladder.

The ladder can be extended by the powered mechanism, or by a winder;

as it extends/retracts, the ladder moves through 90 degrees as it lowers or rises.

Length when ladder fully extended: 11.7 feet.

Features and Details:

$6,242.91.

Note: Price does not include $1,999 Express Front Door Shipping to U.S. from London, England. Arrives in 3-7 weeks.