Serge Poncet did an amazing discovery in november 2015. The nice weather permitted him to do a hike to Coll de Núria where bm508 is to be found. That is to say: the remnants of it and that means that only the engraved cross is left. Its position (conform the Treaty) and the resemblance with the other bordercrosses in this area made a positive identification possible. Nothing was left of the number, however.
But Serge brushed away the loose grit and stone around the cross and he found an engraved 8! Thus proving that this is really bm508.
And let’s show the spot of that 8 on a picture of mine: