Can someone breakdown a Hull Vin # for me
 

I am trying to piece together a roster of the Barons my brother used to build and need an understanding of the hull identification #

For example BDNoo1741078

The Bdn is Baron Marine and the 78 is the year built.Is the 10 proceeding the 78 the month? And the 174is what? Any help is appreciated. Thanks

Here is an explanation of what the numbers all mean:
http://boatsafe.com/nauticalknowhow/hin.htm

Thank you.