Automatic Electric 150GJC

When Automatic Electric bought Gray they continued many of Gray's models. This is the first example of a 150GJ I have ever seen made by Automatic Electric. It is a 5 cent model. Gray converted older 2 piece phones such as a 150G to 150GJ, the suffix J signified a handset model. This antique telephone is NOS in it's original box. It looks to be new rather than a rebuild.

I don't know what the suffix "C" stands for, if you do please let me know!