Is my refurbished iPad 2 a Model A?
Apparently, the Version A is the iPad 2 that came out in March 2012 and was only sold in a 16GB version. It has a revised A5 CPU and it's Model Identifier is iPad2,4. 

The two numbers you're referring to, provide different information.

The one on the back cover is the actual Model Number, which in this case is A1395, whereas the one retrieved from Settings / General / About is the Order Number, and holds information regarding when and where the device was made, its colour and storage.