LEGO 4977 Fire Truck Set Parts Inventory and Instructions - LEGO Reference Guide
BrickLink - Part 48125c05pb01 : LEGO Duplo Cabin Truck Semi-Tractor Cab with Blue Base and Box and Arrows and Globe Pattern [DUPLO, Vehicle] - BrickLink Reference Catalog
Rebrickable on Twitter: "Modular Sanctum Sanctorum (PDF Instructions) by ZeRadman #LEGO https://t.co/0spwa44KxL https://t.co/Sntbs4NGxp" / Twitter