Hello Jef,
If you have the book of Jack Needham, it is the same generic nameless clipper that is described in there.
I would not really recommend it, because first of all it is in german, secondly it does not contain any usefull info on how to build and there are no plans, apart from the second part of 20 pages by Jack Needham, but everybody probably has already Jack's book which is a classic.
JP