Help ID a rank patch on WWI summer uniform

[Panzerfaust]

I picked up this WWI summer uniform and need help IDing the patch on the right sleeve.  Many thanks.

 

Drew

 

 

[Mr. Bushido]

The circular patch in the center indicates Pvt 1st class belonging to motor transport corps.

 

And in general, I think chauffeur 1st class is the only patch that has a single line under the branch symbol.
But I never saw that rank in motor transport corps.

Maybe my memory is fuzzy.

[Panzerfaust]

9 hours ago, Mr. Bushido said:

The circular patch in the center indicates Pvt 1st class belonging to motor transport corps.

 

And in general, I think chauffeur 1st class is the only patch that has a single line under the branch symbol.
But I never saw that rank in motor transport corps.

Maybe my memory is fuzzy.

 

Hello Mr. Bushido,

 

Many thanks for information.  Much appreciated.

 

Regards,

Drew

[Salvage Sailor]

I believe that is a Motor Transport Chauffeur (first class)  

 

Another one was posted recently on the forum -->>  Anyone seen a WWI rank patch like this?

[Justin B.]

Agreed with Salvage Sailor. Chauffeurs were authorized in all branches, and I think this Motor Transport Corps driver substituted his branch device in place of the official 12-spoke wheel. There were almost endless non-regulation enlisted ranks used in the WW1 period.