Maya objects?

The museum has a handful of what may or may not be Mayan artifacts. Or maybe Aztec. The transfer documents say Aztec. Pictured below are a cylinder seal and a figural whistle (click on them to see larger versions). Problem is, I don't know much about these artifacts. And I would like to know more. Can anyone out there in internet-land recommend a good resource on Mayan and/or Aztec ceramics? Bonus points if it addresses the issue of reproductions and fakes, since this is a distinct possibility.


That orange pigment appears to be much more modern than the rest of the object.


Although I am not a subject expert, the markings on this cylinder do not look like the Maya hieroglyphs with which I am familiar, but the overall look of the piece is aged.

Even if it turns out that some or all of our Mayan/Aztec/unknown pieces are fakes and reproductions, they are very neat and may have some useful value as "antique fakes" (which is a term I just made up, meaning reproductions from several decades ago).