FWIW, if someone were to browse a popular sight and search for number 251272802195, I believe it to be original - matches my real one pretty exactly. Price is very reasonable too.
If you look at 271192206412, 2 out of the 4 in their pic look fake to me, the other two are probably real. I would not buy without seeing pictures of the actual cover they are sending. Most originals did NOT have roller buckles. Most real ones had a cheap copper-plated steel buckle, similar to the copper washed ammo cases used in WW2.
There, that's my good deed for the day.