Licence error?

[japcarmad]

i was looking at my driving licence today and noticed something odd with the catagories and there codes. they look as follows.

B with codes 01,78

B1 with codes 01

am i correct to say that i am NOT restricted to a 4 wheeled vehicle under 550kg with an auto transmission?

[japcarmad]

yes i understand what the codes mean but why is only the b class restricted and not the b1? they put eyesight correction on both so why not restricted to auto?