[harrison987]

There is no such thing as a DB605 D Handbook (or even a part list).

For example, the DB605 Handbuch, which just a slightly updated DB601 Handbook

There is one handbook that covers the DB601 as well as the DB605 A thru F...but again, it is just an updated DB601 Handbook...nothing new or even interesting.

There is a DB605 A-C Parts List...but again, just an updated DB601.

When the only difference is MW50, the addition of a DB603 Supercharger, and some fine tuning for increased output, there would be no need for an additional handbook.

Most likely just an addendum was added to go WITH the DB605 Handbook and parts list.