Duncan Phyfe Dining Set

Hi I am interested on what specific set this is? It was my grandmothers. We know it is Duncan Phyfe but I'm struggling to find the exact match online. It is a mahogany table with six chairs. The chairs were originally cream colored but were reupholstered and plastic covered (does that drop the price? Probably. I don't know)

I'd like to know the set name and how much one could possibly sell this for?