active assistance danger emergency emergency services equipment fire fire and rescue fire brigade fire fighters fire fighting firemen help hoses hosing house fire protection protective protective clothing pumping pumps red smoke spraying suburban trucks uniforms vehicles water angles arm dangerous digger elevated elevation external height heights high hydraulics lifting machinery perspectives post-hole-digger power power-pole raised raising replacement replacing risks risky safety service spiraling spiralling up-high work arms connected connections electricity electricity-power-grid insulators New on-high power-lines renewed replaced street-light wires wiring air air rescue aircraft aviation blade blades chopper clouds fast flight fly flying heli helicopter hover industry landing life living propeller rescue rotor search sky speed take-off technology transport transportation artistic helicopter approaching lift off vertical 1930s advertising amateur-photography artwork collectable cover customer-service developed-photos-folder documentation end-product fonts historical history illustrated material-property negatives outsourcing paper paper-product photographic-developing photography photos predigital printing prints product publicity rectangular signage vintage cargo cargo-containers commercial-terminal container-handling-port container-ship container-terminal container-trade container-transport containers cranage cranes docking-facilities handling-equipment harbor harbour marine maritime port port-cranes port-service sailing shipping storage transshipment appetite appetizer banquet bite buffet catering celebration cheese delicatessen delicious diet dining Dinner dish eat eating event food gourmet holiday hungry kitchen light lunch meal meat olive party plate prepared salad sausage snack table taste tasteful tomato vegetable apples bags beans bottles buying cash registers cauliflowers color colors colour colours fruit fruit juices goods greengrocer grocer groceries healthy jars juices mushrooms pillar post produce products purchases purchasing registers selling shop shopping store tomatoes vegetables veggies break coffee colored colorful coloured colourful conference cups cutlery display drinks glasses lighting lights participants pause plates plateware ready refresh refreshing refreshments saucers seminar serve served snacks sugar sweetning tea urns repair-crew replace workman workmen