I had a customer pick out framing for a senior picture. When I got to the glass option she said that the photographer recommended no glass. When I told her that was fine but I don't recommended matting if she doesn't want glass, she said that the photograhper has them on display with matting and no glass. It might be a liner but she is checking for sure. Am I wrong about this? Would you always recommend glass if they want matting? Would you do the piece without glass? The picture has a finish on it that it could be framed without glass but the whole no glass on matting just doesn't sound right to me.