I have two etchings for this artist - but I only know his last name is Philippe. These are certified Original Etchings with the SLZ Triangle Trade Mark. I also am not able to read the titles very well - possibly it says "Vierny Fignoures" and "Pirgnou Janiene" - obviously in French, but not easy to decipher. Who can tell me about the artist? Where can I go to get these valuated?

If you Google SLZ Triangle Trade Mark you will find many people with nearly identical questions. Sounds like maybe it is an art "factory."

The Paris Etching Society appears a lot on this site.
For a better explanation have a look at This Post