I don't know.. This NY Times photo looks a wee bit photo-shopped to me.. See more images and diagrams on link below

New York Times:

Snip

Images like this one might look silly, but they are rich with insights into the country’s military and politics. By using high-tech forensics and traditional detective work, analysts and intelligence agencies can use photos to track North Korea’s internal politics and expanding weapons programs with stunning granularity.

Several experts walked us through this photo of Kim Jong-un, North Korea’s leader, unveiling what he claimed was a new nuclear device. But the image, from March 2016, may show more than Mr. Kim intended: the possible range of the missile behind him, his relationship with the military, even his precise location.

North Korea calls this its first miniaturized nuclear warhead, small enough to fit on a missile. Analysts call it the disco ball.

Jeffrey Lewis, an analyst at the Center for Nonproliferation Studies at the Middlebury Institute of International Studies, used the photo to estimate the device’s size, from which he deduced its weight — a few hundred kilograms — and its destructive yield, about 20 kilotons, roughly equivalent to the atomic bombs that the United States dropped on Japan.

But more important than yield was its small size – about 60 centimeters in diameter – which appears to match North Korea’s claim that it can fit on their long-range missiles, a major leap forward for the country’s nuclear prowess.

Wiring

Nozzle

NUCLEAR

WARHEAD

Plug

Analysts are unsure about the metal plug. It could be a routine component to trigger detonation or it could be used to inject gas, making the device more efficient. This would allow North Korea to build more warheads out of limited plutonium supplies, multiplying the size of its arsenal.

There’s also disagreement over the nozzle. Some suspect it’s a safety feature used to enter the nuclear “pit” just before detonation; others say it could be used to arm the warhead. Analysts hope new images will emerge that will help them solve these riddles.
The Outfit

Scholars of North Korean state media recognize Mr. Kim’s jacket from official portrayals of his grandfather, Kim Il-sung, the nation’s founding leader. The elder Kim is heavily celebrated in state media and closely associated with the Korean War. Mr. Kim, by borrowing his coat, is sending a message that North Korea is again on a war footing.
korea-today-1981.jpg
Mr. Kim’s grandfather, Kim Il-sung, shown in a North Korean propaganda magazine.

Such details help scholars to understand how Mr. Kim is constructing his legitimacy. By mimicking his grandfather, he is implicitly breaking with his father, Kim Jong-il, who tended to rule through institutions like the military and the Communist Party. Instead, Mr. Kim is asserting himself as the center of all authority, as his grandfather did. This pose can help experts better understand the government’s internal dynamics and how it might behave.
The Entourage

Notice what’s absent: military uniforms at an event to unveil a new military weapon. In a country where propaganda sets reality, and the political hierarchy can be life or death, such choices matter.

That’s why Michael Madden, an analyst, tracks appearances by North Korean officials. Here, he spotted civilian officials and two key military leaders: the head of the nuclear program and the head of missile forces, both in civilian clothing.

That sends a clear message: Mr. Kim is asserting that he runs the nuclear weapons program personally, cutting out the usual chain of command. “This is not rule by the military anymore. This is rule by one man,” said Joshua Pollack, who edits the Nonproliferation Review.