Quoted from vec-tor:To me, the hard part is to reproduce is all of the small stardust dots...
On Gottlieb Black Hole, they added a second white screen to add all the small dots over
the final artwork.
I agree. The missing "L" is due to the black key line covering it because it was applied after the white. Doing the white after would have yielded the art like the original, with the "L" visible over the black key line.