I've just added a page
http://www.ghostbombers.com/kf4/IIIkg51.html to my website which gives
Werk Nummern for nine Fw 190 G-3s and F-8s of III./KG 51 and the tactical codes of six of them.
There's also information about the fates of some of these machines and the
Gruppe's strength at this period.