Firstly, a very warm welcome to 'mhuxt' - great to see you here !
Erich, in the last pic Herr Fries is signing a book of Nick Trudgian's prints ; in fact, he's signing under the very same print that Kai posted a link to on #3 of this thread. I bought a copy of the print that day ; you are of course right, it's 'bogus' but Peter signed beneath the Bf110 and Herr Fries under the 219 for me.... The book to Herr Fries' left is
'The Defeat Of The Luftwaffe', I think (neither book was mine ).
The first pic shows Peter holding my copy of Boiten's
'Nachtjagd' and here are the signatures : -
You won't find this one on E-Bay ; for me it's a treasured memento of a most memorable day !