Nuts & Bolts Vol.22: 15cm sIG33/2 (Sf) auf GW 38(t) „Grille“ Sd.Kfz. 138/1), Part 1: Ausf. M & ammunition carrier
http://www.nuts-bolts.de/issue/show/27
Authors Jari Lievonen, Tony Greenland & Martin Block
120 pages A4, glue-bound, approx. 165 photos, of these 43 historical shots of the gun vehicle with all known variants in b/w, many of them unpublished; 98 coloured photos of existing examples of the Sd.Kfz. 138/1 Ausf. M from the only two surviving vehicles in the US Army Ordnance Museum, Aberdeen & Patton Museum, Fort Knox. 18 coloured photos of both versions from Tony Greenland, English / German captions, 28 pages English / German text, 11 pages of scale drawings from all versions in 1:35 scale from John Rue, 14 camouflage schemes from Laurent Lecocq, graphics of tactical markings and table of organization of units using the Grille (Kriegstärke-Nachweisungen KStN), first published September 21st, 2008