Aztec calendar pendant?

[redwine]

A real whopper 

50.1mm
25g
Medal aligned

I'm confusing myself because this also reminds me of a petrol company logo Mobil 

[malj1]

Appears to be an Aztec calendar pendant. Can find nothing about the reverse Pegasus design.

The legendary Aztec Calendar Stone carved by Aztec artists in 1479.
In 1790 during renovations of the Central Square in Mexico City a massive carving was unearthed. It was the Aztec calendar stone, or, more properly, the Cuauhxicalli Eagle Bowl. It is a massive carving, 3 feet thick, almost 12 feet across, and weighing over 22 tons. It was carved from basalt - a solidified lava, this being an area where volcanoes were common. The famous calendar stone is a brilliant combination of artistry and geometry. It reflects the Aztec understanding of time and space as wheels within wheels. The detailed surface of the stone combines the understanding of the gods the people had created over the centuries as well as their observations of the heavens.

[malj1]

Forgot to add this image from Google.

[redwine]

Thanks Mal 
I think I'll put it with my RD collection 

[malj1]

Another can be seen on eBay today described as "The Maya sundials"Silver plated Business souvenir medal" on sale in China 

Various types of platings are available from the same seller.

[redwine]

But where is the all important RD graphic!