Stone and wood Aztec vs. Spanish Conquistador Chess Set/Backgammon

So I recently picked this set up from a junk shop and am wondering what it is worth. I was able to find it on ebay so I have a very rough idea but I did notice that the ones I found were slightly less complete than the one I found. All chess set pieces are accounted for, 2 sets of 15 backgammon chips, 2 sets of die, as well as the original stone doubling dice. There are a few chips of of some of the pieces but no major damage.

This is a link to the set I found on ebay

http://www.ebay.com/itm/Vintage-Mayan-Antique-Chess-Backgammon-Set-w-Folding-Board-Carved-Stone-Pieces-/130794371249?pt=Games_US&hash=item1e73f3b8b1

the only difference that I can see between the mine and the one on ebay is that with mine the aztec side is brown stone and the spanish is green.

Any info on what this is worth or even who might know some more about it would be a great help.

Thank you,
Phill Landry