Great information Stephen, I am also waiting patiently for a 262 data plate to make an appearance, or at least a sharp photo showing one in place. Further to the 262 at Deelen, I have found a similar duralumin manufacturing stamp at the link below to the one pictured below the W.Nr.
It seems to be the same although I can't match it to any company name yet.
http://fanaviation.free.fr/acceuil/a...kodak_165.html
Also, from the information that Jaap has obtained from Deelen as to what has been found so far it would explain something for me. I noticed that the main landing gear wheel is gone, the complete assembly, from the one found and only two guns so far, but no mention of ammunition.
It may be possible that the aircraft was stripped of parts and munitions either by the Germans or locals, more probably by the Germans after it crashed.
Or maybe there's a farmer using 262 wheels on his trailer.
Anyways, I'm enjoying the hunt, the company and learning something new.
Vince...