The Cinnamon Pewter Ball Python is a designer morph, as it was created by man. This is a cross between a Cinnamon Pastel, and a Pastel (often known as a Jungle Pastel.)
A Pewter is a near silver and black hatchling. As they grow, their coloring is a very pale tan/grey base with extreme fading dorsally and laterally with a clear white belly
Pewters can also be made by crossing a Pastel with a Black Pastel, but I will refer to that combo as a Black Pewter.
A Super-Pastel Pewter would be a snake with the Super Pastel genes and Cinnamon Pastel, It’s called a Sterling.