(Warning: This post contains material which may only be of interest to people like Georges

)
I recently acquired a white supernova and thought I would take this opportunity to share some pictures showing the subtle differences between different versions of the Hungarian Supernova.
My white supernova is a 6 colored version with painted colors instead of stickers. The paint has a nice glossy look, and the colors are blue, green, red, orange, yellow and black. There are also visible mold marks running across the pieces. I believe this indicates that the supernova is from an early production, as David Singmaster has a comment (in his list "Singmaster Cube and Puzzle Collection") about the mold marks being removed on later productions.

My white supernova is apparently different from the stickered version Milan got a few years ago, shown by Georges in
this post. It also has other colors than the white Pentangle version shown in James Dalgety's
Puzzle Museum (scroll down to the third picture). If anyone has more information about the white supernovas or the different production versions in general, please post here. (When were the mold marks removed? How many different versions of the white supernova exists? Was there also a 6-colored painted version in black?)
Here my white supernova is joined by some of its black cousins:

Front row, left to right: White supernova, French version (?), new reproduction from 2009
Back row: Pentangle UK version in plastic tube, French version (Le Diamant) in plastic case.
For a long time I thought all the supernovas produced in the 1980's had bright orange stickers, as shown in the beautiful pictures posted by Dave
here. This was certainly true for all the supernovas I had seen on ebay, the UK version distributed in the plastic tube by Pentangle and the Hungarian version distributed in the cylindrical case with black base, as shown in Georges'
gallery. So when I first received an old supernova where none of the stickers were bright orange, I suspected that someone might have restickered it. But then I received the French version (Le Diamant) sealed in its original case, and noticed that it had the same strange color scheme: instead of the bright orange and tan colors of the UK/Hungarian versions, it has dark green and gray colors not found on the others. The stickers of the French version also have a slightly different shape, as none of the corners are rounded:

More subtly the French version also has a warmer yellow and a brighter red than the Hungarian/UK version:


The color scheme of the French version is:
Gold opposite silver, dark green opposite green, gray opposite blue, light orange opposite red, black opposite brown, white opposite yellow.
With the gold side facing you, the surrounding colors going clock-wise are: dark green, gray, light orange, black, white.
The color scheme of the other Hungarian and UK versions are:
Gold opposite silver, blue opposite green, brown opposite black, red opposite tan, light orange opposite bright orange, white opposite yellow.
With the gold side facing you, the surrounding colors going clock-wise are: blue, brown, red, light orange, white.
The first Supernova I received with the "French" color scheme was sent to me from Hungary and seems to have smaller edge stickers than the sealed "Le Diamant", so it would be interesting to know whether these supernovas were also distributed outside of France. Again, any additional information would be appreciated.
As a small addendum to Dave's brilliant megaminx comparison
thread, here is a picture of the internals of my white supernova in comparison to a regular black one:

The mechanisms are the same, but the white ball-shaped core of the white version is completely smooth as opposed to the gray core of the black version. Also, each corner and edge piece of the white version is not comprised of two interlocking halves as on the black version. There are also some minor differences in the dimensions of the feet, but this is hard to see from the pictures:

Finally I include another picture of the newest reproduction of the Hungarian Supernova, which is easily recognizable by its pastel colored stickers and black core:
