Sorry Jay, I had not noticed your question.
I only have three, maybe four different pressed marks of VSL, either VSL or Val St Lambert in full, followed by Belgique or Belgium.
On my Pinterest page I have a board 'Signatures' with images from my own pieces and images found on the internet, please help yourself as it's easier like that. Doesn't cost anything to join Pinterest, you only need to register.
I had one bright blue Romeo bowl that was partly satin finished and the mold was extraordinary crisp, the signature came up very nice.
There's one piece, a carp on a custom made lamp base, that is catalogued in the Luxval series (not as lamp but just the carp), and this particular piece is acid marked, perhaps it was a production pre Luxval but besides that, I have no other examples, not that I know of either.
Other pieces that you might come across have a black painted and elegant cursive VSL signature, often to be found on vases with satin finish like Girofla and Coqueret, but these are pre Luxval as well.
I remember being told once, yonks ago, that everything signed Fait en Belgique is always Scailmont, but we know now, that this is simply not true, and I have just heard another thing about VSL, that the signatures were payable
300fB the equivalent of €7,50 per piece, but that doesn't make sense to me ... Who got charged with those costs then? The client? I don't know where this wisdom comes from but for now it's just another rumour that adds to the confusion I guess.