It is also the Obergefreiter ( Corporal or Senior Lance-Corporal ). The rank was called Rottenführer in the SS. However there should be the black collar patches different from these seen there. Anyway it is possible he got the uniform blouse of the early type ( eg. M36 )and not having the SS collar patches he could add the two Corporal bars on the shoulder marks. Also he might have "inherited" his rang from the HJ that was the Oberrottenführer. Just the marking might vary depending on the time and units.
