There you go!
AA, is your plane numbered?? 
CUPN |
CUPN,
this is one of the Swiss Hornets I don't have. I do have seven so far and didn't want to pay the high price for the E114 just to have another one.
The B11E108 has a numbered plaque. I this case the S/N is also present on the outside of the FM box just under the partnumber.
The reason my model does not have a serial is that is is the prototype for the production run. I also have one NIB numbered 42/400.
Cheers,
AA