English: This is a photograph of the RDS-6s device, the fifth Soviet nuclear test which was called Joe 4 in the US. unknown, believed to be public domain
Telugu: ఇది RDS-6s పరికరం యొక్క ఛాయాచిత్రం, US లో జో 4 అని పిలువబడిన ఐదవ సోవియట్ అణు పరీక్ష.