Search command:
class.x -di x -He EH491:MVNFL1000

Result:
4 5  M:26 5 N:680 5 H:491,11 [960]
    1    0    0    0  -42
    0    1    0    0  -28
    0    0    1    0  -12
    0    0    0    1   -1
#NF: 1
  done (0s)