Gary Edmundson 
Modelling the German 15cm sIG33 Bison and Grille [PDF ebook] 

The ‘Bison’ and ‘Grille’ are today’s commonly used names for the German self-propelled 15cm schwere Infanteriegesch tz 33 (s IG 33) vehicles of World War II. The s IG 33 was the most powerful support weapon for the German infantry at the beginning of the war and from 1940 it was mounted on a range of tracked vehicles. This book demonstrates the construction of five 1/35-scale models of specific examples of the various self-propelled s IG 33 vehicles. The modeller is led through the various skill levels of construction by combining existing kits with some aftermarket accessories and scratch-built items.