From Fire Replicas:

Only 125 units have been produced, and considering this model has been mentioned in current issues of both Fire Apparatus Journal and Vintage Fire Truck & Equipment magazines, we expect to be sold out very quickly.
 
If you’d like to order, you can do so HERE, but we would recommend that you do so very soon.
Fire Replica model of Chicago FD Truck 51 Seagrave aerial
Fire Replica model of Chicago FD Truck 51 Seagrave aerial

Fire Replica model of Chicago FD Truck 51 Seagrave aerial

Fire Replica model of Chicago FD Truck 51 Seagrave aerial

Fire Replica model of Chicago FD Truck 51 Seagrave aerial