The stunning photos of life across the vibrant country in the 60s and 70s portray a seemingly cosmopolitan kingdom on the brink of change.Locals are pictured doing the 'Tehran twist' to Iranian rock 'n' roll bands, families sunbathe by a swimming pool and mosques and bazaars still popular today are also caught on camera, revealing the tension between modern and traditional influences tussling for supremacy.The 1979 revolution saw the ousting of King Shah Mohammad Reza Pahlavi and the instalment of Ayatollah Ruhollah Khomeini - a shift that would have long-lasting and far reaching implications.