Earliest 100-Six?

[CAWS52803@aol.com]

Hey Listers,
As anyone one of you worth your salt knows, next year is the Golden  
Anniversary of the least appreciated of our glorious Austin-Healeys, the  BN4 
series 
100-Sixes.  Finally one of the best cars in our long list,  will be honor as 
deserved.
BS aside, I am looking for the earliest built car.  In my Registry, I  have 
BN4 28112.  Does anyone have or know of an earlier car?
Any leads appreciated.
Rudy Streng
Lenoir, NC