As you know a large part of my year has been occupied with research after the lyre of Trossingen and making a couple reconstructions.
I often got asked to make a set of plans for people who want to make the lyre themselves. 
While I made a small drawing in Luit van der Tuuk’s book about the lyre, it was impossible to get all details in there. Let alone the engravings.
So I reworked my original digital drawings to make a complete set of plans.
Go to my Payhip page to download your own set!
https://payhip.com/b/TlYa
The Dutch Luthier 