Can't find iPad Pro model ML0G2CL/A online

My iPad Pro circa 2015 has a model number ML0G2CL/A. I am unable to find this model online.

(The "0" is a "zero" -- shown on the "About" screen as a circle with a "\" through the middle.)

[Re-Titled by Moderator]

Original Title: Apple iPad Pro 2015 -- Model ML0G2CL/A