Duncan Phyfe Dining Room Table Set

This set was given to me by someone who was about to just throw it out! When someone suggested to me that it may be a Duncan Phyfe set, I started to do some research. However, I cant determine a way to know for certain whether or not this set is genuine. It definately has some quality craftsmanship: it is heavy and sturdy. Unfortunately, I cannot find any markings. The table does not include a leaf, but looks like it did at some point. It has 2 pedistals which hold it up on either side with what looks like brass feet. The table top does have some scratches/chipping. The chairs are in wonderful condition. There are 6 total and one is a "captain's chair" with arms. The upholstered seats appear to be original with normal wear, but no damage (possibly some fading and a little thin around the edges from sitting). All 6 chairs are extremely sturdy with no damage that I've noticed. There are no markings that I can find, just some chalk numbers scribbled underneath the table top and chairs, possibly to match the pieces during manufacturing?

Fair