Antique/Vintage Mirror Finds at Auction - Want to Re-Sell

First time user.  Just purcased two mirrors, one of which I believe to be antique (copper-coloured pediments) with mercury plate glass.  The other looks to be more mid-19th century - or maybe I'm wrong?  I've looked at so much to try to compare to ascertain, and my brain is like mush, but I'll share my thoughts, but clearly, would value and appreciate the opinion of those much more seasoned than I.

Forgive me, I thought I did a good job cleaning both mirrors, but the larger one has no imperfections - just my handmarks, somehow.  I don't believe it's gilded but might it be a gesso frame?  

Both mirrors are heavy for their size, and obviously the largest of the two is even more so.

Both mirrors are bevelled.  The smaller of the two has what is called spotting in the top left corner, but which you can't see from a distance.  There are two distinct blemished areas, one being more pronounced than the other, and again, from a distance the one might be seen more over the other one.  All of this would seem to indicate it's mercury glass underneath, which would speak to it's age.  

Trying to determine which period the small rectangular one fits into keeps me going back to the Georgian period, although I could be quite mistaken.  What I can't find is anything quite like this other than other mirrors with the so called pediments on top or are they gesso too?  And, what about the colouration?  Here it is a copper colour, not gold, and I have read that gesso can be more than gold and/or gilded.  What's also interesting is the metal reinforcement that is the same colour as the pediments.  And, when looking from the back, those pediments seem to at least indicate a base, wood composition.  Anything anyone can offer up to me on that particular mirror, it's likely origin, style era, and so on would be welcome.  I want to get an idea of value, so for resale purposes I can price adequately and not mistakenly price it too low ~ or ~ too high, if I'm really off the mark in thinking it's quite an unusual antique, and I don't see anything quite to compare it to.  Has it been modified in some way?  Is the copper colour been painted over in some way?  I'm at a real loss.

The larger mirror is gorgeous, and obviously it needs to be cleaned - dust and dirt accumulation in the corners.  Should I attempt that myself, or leave that to the buyer?  I would think to let the buyer clean it up myself, but maybe doing so would be an investment to getting a good price for it.  I initially thought I was going to keep the larger one for myself, but I think now, it's too large for my purposes.

Size-wise, the smaller rectangular mirror is 20 3/16 x 30 1/8" square, and with pediments or embellishments included, size is 23 9.16" x 32 3/4" 

The larger framed gold mirror is approximately 37 1/2 x 47 1/2", and the plate mirror itself is approx. 29 1/2 x 39 1/2"

Any help would be greatly appreciated.

Now to include some pictures, such as I've taken.