2S1 armour army artillery Camouflage Carnation Gvozdika howitzer machine military power self-propelled soviet tank vehicle war wheel gun t soviet USSR world war II T 55 AMS aerial-work-platform articulating-boom-lift basket-crane boom-lift cage cherry-picker compact danger dangerous elevated-work-platform extension Harness height high hydraladder hydraulic-lifting-system hydraulic-platform hydraulics lift maintenance man-lift manoeuvrable men men-at-work mobile-hydraulic-platform nifty-lifter railing rails raised-platform roof roof-work roofing safety safety-harness tall up-high work workmen bones british canada canadian sexton sign skull