Does anyone belong to one of the art sites that give you auction values?

[Vinca]

Since I'm only trying to find out the value of 1 painting, it's not worth it for me to sign up and you can't seem to find anything for free on the Internet anymore. In any case, it's a large oil painting by a now deceased artist known as Louis Quilici. There's a sticker on the back from what appears to be a defunct Paris gallery, Galerie Claude Levin. I would guess it's late 1950's or early 1960's. It's one of my $5 yard sale finds. It's been hanging on my wall forever and I just took it down to paint and my antique picker self reawakened.